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For Expeditions Arena Challenges, see Expedition Challenges.
ChallengeScreen

Challenges is a special game mode that rewards Challenge Points, which when reaching certain numbers reward Challenge Milestones and extra damage. It is unlocked at level 15. Every challenge has a set of Creatures with increasing levels. When the final creature of the challenge is defeated, the player is rewarded with challenge points, and other miscellaneous currencies. Rewards are given only one time per difficulty tier. There are two types of Challenges: Normal Challenges and Series Challenges.

Normal Challenges[]

In Normal Challenges, every Creature is labelled as a Boss, and the HP will be calculated as one. Completing a challenge for the first time rewards Challenge Points, Gold, AP, and Diamonds.

Note: Challenge Points, AP, and Diamond rewards remain constant regardless of mode or difficulty, but the Gold rewards only remain constant regardless of mode.

Currently there are 9 Normal Challenges. Completing every challenge on every mode on every difficulty yields:

  • 422.24M Gold
  • 3,385 Challenge Point
  • 5,950 Activity Points
  • 11,385 Diamonds
Name Number of Creatures Stage Challenge Points AP Diamonds
Rats! 5 Cellar 6 Challenge Point 10 Activity Points 20 Diamonds
Fruitarian No More 5 Hill Side 6 Challenge Point 10 Activity Points 20 Diamonds
Tribal Smash 5 Wood Gate 6 Challenge Point 10 Activity Points 20 Diamonds
Uhg A Thug! 13 Desert 15 Challenge Point 30 Activity Points 58 Diamonds
WereThings 12 Forest 16 Challenge Point 30 Activity Points 55 Diamonds
Under the Sea 5 Under Water 6 Challenge Point 10 Activity Points 20 Diamonds
Rednex 5 Farm 6 Challenge Point 10 Activity Points 20 Diamonds
Galactic Snackbar 5 Restaurant 6 Challenge Point 10 Activity Points 25 Diamonds
Infested 5 Cave 6 Challenge Point 10 Activity Points 20 Diamonds

Gold Rewards[]

  • Gold reward for a specific challenge and difficulty tier is given by, where BGR = base gold reward for the challenge at Bronze I and D = difficulty rating.
  • Difficulty ratings range from 1 (Bronze I) to 5 (Bronze V), 6 (Silver I) to 10 (Silver V), and 11 (Gold I) to 15 (Gold V) for the purposes of the above formula.
  • Certain gold rewards are affected by a negligible rounding error. These are shown in brackets.

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I 13,000 Gold 25,000 Gold 20,000 Gold 75,000 Gold 200,000 Gold 16,000 Gold 15,000 Gold 13,000 Gold 13,000 Gold
II 52,000 Gold 100,000 Gold 80,000 Gold 300,000 Gold 800,000 Gold 64,000 Gold 60,000 Gold 52,000 Gold 52,000 Gold
III 117,000 Gold 225,000 Gold 180,000 Gold 675,000 Gold 1.8M (1.799M)Gold 144,000 Gold 135,000 Gold 117,000 Gold 117,000 Gold
IV 208,000 Gold 400,000 Gold 320,000 Gold 1.2M Gold 3.2M (3.199M) Gold 256,000 Gold 240,000 Gold 208,000 Gold 208,000 Gold
V 325,000 Gold 625,000 Gold 500,000 Gold 1.875M Gold 5M (4.999M?) Gold 400,000 Gold 375,000 Gold 325,000 Gold 325,000 Gold

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I 468,000 Gold 900,000 Gold 720,000 Gold 9.075M Gold 2.7M (2.699M) Gold 576,000 Gold 540,000 Gold 468,000 Gold 468,000 Gold
II 637,000 Gold 1.225M (1.224M) Gold 980,000 Gold 3.675M Gold 9.8M (9.799M) Gold 784,000 Gold 735,000 Gold 637,000 Gold 637,000 Gold
III 832,000 Gold 1.6M (1.599M) Gold 1.28M Gold 4.8M (4.799M) Gold 12.8M (12.799M) Gold 1.024M Gold 960,000 Gold 832,000 Gold
IV 1.053M Gold 2.025M Gold 1.62M Gold 6.075M Gold 16.2M (16.199M) Gold 1.296M Gold 1.215M Gold 1.053M Gold 1.053M Gold
V 1,3M (1.299M) Gold 2.5M (2.499M) Gold 2M (1.999M?) Gold 7.5M (7.499M) Gold 20M (19.999M?) Gold 1.6M (1.599M) Gold 1.5M (1.499M) Gold 1.3M (1.299M) Gold 1.3M (1.299M) Gold

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I 1.573M Gold 3.025M Gold 2.42M Gold 7.2M (7.199M) Gold 24.2M (24.199M) Gold 1.936M Gold 1.815M Gold 1.573M Gold 1.573M Gold
II 1.872M Gold 3.6M (3.599M) Gold 2.88M Gold 10.8M (10.799M) Gold 28.8M (28.799M) Gold 2.304M Gold 2.16M Gold 1.872M Gold 1.872M Gold
III 2.197M Gold 4.225M Gold 3.38M Gold 12.675M Gold 33.8M (33.799M) Gold 2.704M Gold 2.535M Gold 2.197M Gold 2.197M Gold
IV 2.548M Gold 4.9M (4.899M) Gold 3.92M Gold 14.7M (14.699M) Gold 39.2M (39.199M) Gold 3.136M Gold 2.94M Gold 2.548M Gold 2.548M Gold
V 2.925M Gold 5.625M Gold 4.5M (4.499M) Gold 16.875M Gold 45M (44.999M?) Gold 3.6M (3.599M) Gold 3.375M Gold 2.925M Gold 2.925M Gold

Difficulties and Modes[]

ChallengeDifficulty

There are 3 Challenge difficulties: Bronze, Silver, Gold, each containing 5 difficulty tiers (I, II, III, IV, and V) within themselves. Each Tier and Difficulty will be blocked for each challenge until the player finishes the previous Tier.

Also, there are 3 Challenge modes:

ChallengeMode
  • Solo: The player goes alone against the Creatures;
  • Duo: The Challenge is fought in a two member party. If the player is in a party fighting in any of the common worlds, the game will try to enter the challenge with that partner;
  • Group: A group of 6 players fights the Challenge.

How to enter a Challenge[]

To enter a Challenge, the player must open the Game tab and select the Challenges icon. Then, he must choose the difficulty, mode, and Challenge. If Duo or Group mode is chosen, the player will enter a Challenge Queue, waiting for more players to join. It is also possible to check the open queues, joining another player's challenge. When setting up a Challenge, is possible to set a minimum level or an access password. The challenge creator can click the Start Now button to begin a challenge with fewer than the maximum number of players. In Group Challenges, any player can start the challenge early if they are 100+ levels above the challenge creator, or if 4+ players are in the queue.

Challenges marked with a blue background have an access password. The Check green check indicates a challenge that you already completed.

Requirements to Enter Challenges[]

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I
II Complete Group Bronze I Complete Group Bronze I Complete Group Bronze I Complete Group Bronze I Complete Group Bronze I Complete Group Bronze I Complete Group Bronze I Complete Group Bronze I Complete Group Bronze I
III Complete Group Bronze II Complete Group Bronze II Complete Group Bronze II Complete Group Bronze II Complete Group Bronze II Complete Group Bronze II Complete Group Bronze II Complete Group Bronze II Complete Group Bronze II
IV Complete Group Bronze III Complete Group Bronze III Complete Group Bronze III Complete Group Bronze III Complete Group Bronze III Complete Group Bronze III Complete Group Bronze III Complete Group Bronze III Complete Group Bronze III
V Complete Group Bronze IV Complete Group Bronze IV Complete Group Bronze IV Complete Group Bronze IV Complete Group Bronze IV Complete Group Bronze IV Complete Group Bronze IV Complete Group Bronze IV Complete Group Bronze IV

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I Complete Solo Bronze I Complete Solo Bronze I Complete Solo Bronze I Complete Solo Bronze I Complete Solo Bronze I Complete Solo Bronze I Complete Solo Bronze I Complete Solo Bronze I Complete Solo Bronze I
II Complete Solo Bronze II Complete Solo Bronze II Complete Solo Bronze II Complete Solo Bronze II Complete Solo Bronze II Complete Solo Bronze II Complete Solo Bronze II Complete Solo Bronze II Complete Solo Bronze II
III Complete Solo Bronze III Complete Solo Bronze III Complete Solo Bronze III Complete Solo Bronze III Complete Solo Bronze III Complete Solo Bronze III Complete Solo Bronze III Complete Solo Bronze III Complete Solo Bronze III
IV Complete Solo Bronze IV Complete Solo Bronze IV Complete Solo Bronze IV Complete Solo Bronze IV Complete Solo Bronze IV Complete Solo Bronze IV Complete Solo Bronze IV Complete Solo Bronze IV Complete Solo Bronze IV
V Complete Solo Bronze V Complete Solo Bronze V Complete Solo Bronze V Complete Solo Bronze V Complete Solo Bronze V Complete Solo Bronze V Complete Solo Bronze V Complete Solo Bronze V Complete Solo Bronze V

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I Complete Duo Bronze I Complete Duo Bronze I Complete Duo Bronze I Complete Duo Bronze I Complete Duo Bronze I Complete Duo Bronze I Complete Duo Bronze I Complete Duo Bronze I Complete Duo Bronze I
II Complete Duo Bronze II Complete Duo Bronze II Complete Duo Bronze II Complete Duo Bronze II Complete Duo Bronze II Complete Duo Bronze II Complete Duo Bronze II Complete Duo Bronze II Complete Duo Bronze II
III Complete Duo Bronze III Complete Duo Bronze III Complete Duo Bronze III Complete Duo Bronze III Complete Duo Bronze III Complete Duo Bronze III Complete Duo Bronze III Complete Duo Bronze III Complete Duo Bronze III
IV Complete Duo Bronze IV Complete Duo Bronze IV Complete Duo Bronze IV Complete Duo Bronze IV Complete Duo Bronze IV Complete Duo Bronze IV Complete Duo Bronze IV Complete Duo Bronze IV Complete Duo Bronze IV
V Complete Duo Bronze V Complete Duo Bronze V Complete Duo Bronze V Complete Duo Bronze V Complete Duo Bronze V Complete Duo Bronze V Complete Duo Bronze V Complete Duo Bronze V Complete Duo Bronze V

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I Complete Group Bronze V Complete Group Bronze V Complete Group Bronze V Complete Group Bronze V Complete Group Bronze V Complete Group Bronze V Complete Group Bronze V Complete Group Bronze V Complete Group Bronze V
II Complete Group Silver I Complete Group Silver I Complete Group Silver I Complete Group Silver I Complete Group Silver I Complete Group Silver I Complete Group Silver I Complete Group Silver I Complete Group Silver I
III Complete Group Silver II Complete Group Silver II Complete Group Silver II Complete Group Silver II Complete Group Silver II Complete Group Silver II Complete Group Silver II Complete Group Silver II Complete Group Silver II
IV Complete Group Silver III Complete Group Silver III Complete Group Silver III Complete Group Silver III Complete Group Silver III Complete Group Silver III Complete Group Silver III Complete Group Silver III Complete Group Silver III
V Complete Group Silver IV Complete Group Silver IV Complete Group Silver IV Complete Group Silver IV Complete Group Silver IV Complete Group Silver IV Complete Group Silver IV Complete Group Silver IV Complete Group Silver IV

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I Complete Solo Silver I Complete Solo Silver I Complete Solo Silver I Complete Solo Silver I Complete Solo Silver I Complete Solo Silver I Complete Solo Silver I Complete Solo Silver I Complete Solo Silver I
II Complete Solo Silver II Complete Solo Silver II Complete Solo Silver II Complete Solo Silver II Complete Solo Silver II Complete Solo Silver II Complete Solo Silver II Complete Solo Silver II Complete Solo Silver II
III Complete Solo Silver III Complete Solo Silver III Complete Solo Silver III Complete Solo Silver III Complete Solo Silver III Complete Solo Silver III Complete Solo Silver III Complete Solo Silver III Complete Solo Silver III
IV Complete Solo Silver IV Complete Solo Silver IV Complete Solo Silver IV Complete Solo Silver IV Complete Solo Silver IV Complete Solo Silver IV Complete Solo Silver IV Complete Solo Silver IV Complete Solo Silver IV
V Complete Solo Silver V Complete Solo Silver V Complete Solo Silver V Complete Solo Silver V Complete Solo Silver V Complete Solo Silver V Complete Solo Silver V Complete Solo Silver V Complete Solo Silver V

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I Complete Duo Silver I Complete Duo Silver I Complete Duo Silver I Complete Duo Silver I Complete Duo Silver I Complete Duo Silver I Complete Duo Silver I Complete Duo Silver I Complete Duo Silver I
II Complete Duo Silver II Complete Duo Silver II Complete Duo Silver II Complete Duo Silver II Complete Duo Silver II Complete Duo Silver II Complete Duo Silver II Complete Duo Silver II Complete Duo Silver II
III Complete Duo Silver III Complete Duo Silver III Complete Duo Silver III Complete Duo Silver III Complete Duo Silver III Complete Duo Silver III Complete Duo Silver III Complete Duo Silver III Complete Duo Silver III
IV Complete Duo Silver IV Complete Duo Silver IV Complete Duo Silver IV Complete Duo Silver IV Complete Duo Silver IV Complete Duo Silver IV Complete Duo Silver IV Complete Duo Silver IV Complete Duo Silver IV
V Complete Duo Silver V Complete Duo Silver V Complete Duo Silver V Complete Duo Silver V Complete Duo Silver V Complete Duo Silver V Complete Duo Silver V Complete Duo Silver V Complete Duo Silver V

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I Complete Group Silver V Complete Group Silver V Complete Group Silver V Complete Group Silver V Complete Group Silver V Complete Group Silver V Complete Group Silver V Complete Group Silver V Complete Group Silver V
II Complete Group Gold I Complete Group Gold I Complete Group Gold I Complete Group Gold I Complete Group Gold I Complete Group Gold I Complete Group Gold I Complete Group Gold I Complete Group Gold I
III Complete Group Gold II Complete Group Gold II Complete Group Gold II Complete Group Gold II Complete Group Gold II Complete Group Gold II Complete Group Gold II Complete Group Gold II Complete Group Gold II
IV Complete Group Gold III Complete Group Gold III Complete Group Gold III Complete Group Gold III Complete Group Gold III Complete Group Gold III Complete Group Gold III Complete Group Gold III Complete Group Gold III
V Complete Group Gold IV Complete Group Gold IV Complete Group Gold IV Complete Group Gold IV Complete Group Gold IV Complete Group Gold IV Complete Group Gold IV Complete Group Gold IV Complete Group Gold IV

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I Complete Solo Gold I Complete Solo Gold I Complete Solo Gold I Complete Solo Gold I Complete Solo Gold I Complete Solo Gold I Complete Solo Gold I Complete Solo Gold I Complete Solo Gold I
II Complete Solo Gold II Complete Solo Gold II Complete Solo Gold II Complete Solo Gold II Complete Solo Gold II Complete Solo Gold II Complete Solo Gold II Complete Solo Gold II Complete Solo Gold II
III Complete Solo Gold III Complete Solo Gold III Complete Solo Gold III Complete Solo Gold III Complete Solo Gold III Complete Solo Gold III Complete Solo Gold III Complete Solo Gold III Complete Solo Gold III
IV Complete Solo Gold IV Complete Solo Gold IV Complete Solo Gold IV Complete Solo Gold IV Complete Solo Gold IV Complete Solo Gold IV Complete Solo Gold IV Complete Solo Gold IV Complete Solo Gold IV
V Complete Solo Gold V Complete Solo Gold V Complete Solo Gold V Complete Solo Gold V Complete Solo Gold V Complete Solo Gold V Complete Solo Gold V Complete Solo Gold V Complete Solo Gold V

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I Complete Duo Gold I Complete Duo Gold I Complete Duo Gold I Complete Duo Gold I Complete Duo Gold I Complete Duo Gold I Complete Duo Gold I Complete Duo Gold I Complete Duo Gold I
II Complete Duo Gold II Complete Duo Gold II Complete Duo Gold II Complete Duo Gold II Complete Duo Gold II Complete Duo Gold II Complete Duo Gold II Complete Duo Gold II Complete Duo Gold II
III Complete Duo Gold III Complete Duo Gold III Complete Duo Gold III Complete Duo Gold III Complete Duo Gold III Complete Duo Gold III Complete Duo Gold III Complete Duo Gold III Complete Duo Gold III
IV Complete Duo Gold IV Complete Duo Gold IV Complete Duo Gold IV Complete Duo Gold IV Complete Duo Gold IV Complete Duo Gold IV Complete Duo Gold IV Complete Duo Gold IV Complete Duo Gold IV
V Complete Duo Gold V Complete Duo Gold V Complete Duo Gold V Complete Duo Gold V Complete Duo Gold V Complete Duo Gold V Complete Duo Gold V Complete Duo Gold V Complete Duo Gold V

Challenge Final Boss Damage[]

Creatures in challenges undergo a constant level pattern. If

represents the level of the first monster in a particular Challenge, each successive monster in the Challenge will be

levels stronger than the preceding monster. This is equal to

. In the following below tables the HP of the final bosses is shown without the HP reduction (Hunting Upgrades) effect. If needed look at the HP reduction table. The HP of the tables were calculated by the formula:

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I 2,724 5,496 10,836 56,664 200,724 571,556 6.35 M 14.288 M 25.401 M
II 92,436 204,324 369,684 2.039 M 7.225 M 20.575 M 228.614 M 514.382 M 914.457 M
III 817,236 1.86 M 3.297 M 18.352 M 65.028 M 185.177 M 2.057 B 4.629 B 8.23 B
IV 4.064 M 9.144 M 16.257 M 90.63 M 321.126 M 914.457 M 10.16 B 22.861 B 40.642 B
V 57.153 M 128.595 M 228.614 M 1.274 B 4.515 B 12.859 B 141.884 B 321.489 B 571.536 B

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I 11,684 26,264 46,676 260,120 921,620 2.624 M 29.16 M 65.610 M 116.64 M
II 419,924 944,804 1.679 M 9.363 M 33.177 M 94.478 M 1.049 B 2.362 B 4.199 B
III 3.779 M 8.503 M 15.116 M 84.272 M 298.598 M 850.305 M 9.447 B 21.258 B 37.791 B
IV 18.662 M 41.99 M 74.649 M 416.16 M 1.474 B 4.199 B 46.656 B 104.976 B 186.624 B
V 262.44 M 590.49 M 1.049 B 5.852 B 20.736 B 59.049 B 656.1 B 1.476 T 2.624 T

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I 46,676 104,996 186,644 1.04 M 3.686 M 10.497 M 116.64 M 262.440 M 466.56 M
II 1.679 M 3.779 M 6.718 M 37.454 M 132.71 M 377.913 M 4.199 B 9.448 B 16.796 B
III 15.116 M 34.012 M 60.466 M 337.089 M 1.194 B 3.401 B 37.791 B 85.031 B 151.165 B
IV 74.649 M 167.961 M 298.598 M 1.664 B 5.898 B 16.796 B 186.624 B 419.904 B 746.496 B
V 1.049 B 2.361 B 4.199 B 23.409 B 82.944 B 236.196 B 2.624 T 5.905 T 10.497 T

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I 161.391 M 362.826 M 645.16 M 3.597 B 12.745 B 36.294 B 403.275 B 907.371 B 1.613 T
II 390.457 M 878.055 M 1.562 B 8.704 B 30.84 B 87.824 B 975.827 B 2.196 T 3.903 T
III 842.857 M 1.896 B 3.212 B 17.341 B 66.588 B 189.621 B 2.106 T 4.741 T 8.427 T
IV 1.66 B 3.748 B 6.666 B 37.164 B 131.681 B 374.984 B 4.166 T 9.375 T 16.665 T
V 27.662 B 62.24 B 110.649 B 616.853 B 2.185 T 6.224 T 69.115 T 155.601 T 276.623 T

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I 740.71 M 1.666 B 2.962 B 16.517 B 58.525 B 166.658 B 1.851 T 4.166 T 7.407 T
II 1.792 B 4.032 B 7.169 B 39.968 B 141.616 B 403.275 B 4.48 T 10.082 T 17.923 T
III 3.869 B 8.707 B 15.479 B 86.294 B 305.764 B 870.712 B 9.674 T 21.768 T 38.698 T
IV 7.652 B 17.218 B 30.611 B 170.651 B 604.661 B 1.721 T 19.131 T 43.047 T 76.527 T
V 127.02 B 285.797 B 508.083 B 2.832 T 10.036 T 28.579 T 317.552 T 714.493 T 1.27 Q

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I 2.962 B 6.666 B 11.851 B 66.069 B 234.101 B 666.639 B 7.407 T 16.666 T 29.628 T
II 7.169 B 16.131 B 28.677 B 159.872 B 566.466 B 1.613 T 17.923 T 40.328 T 71.693 T
III 15.479 B 34.828 B 61.917 B 345.179 B 1.223 T 3.482 T 38.698 T 87.071 T 154.793 T
IV 30.611 B 68.874 B 122.444 B 682.606 B 2.418 T 6.887 T 76.527 T 172.187 T 306.11 T
V 508.083 B 1.143 T 2.032 T 11.329 T 40.144 T 114.318 T 1.27 Q 2.858 Q 5.08 Q

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I 48.199 B 108.446 B 192.794 B 1.074 T 3.808 T 10.844 T 120.497 T 271.119 T 481.988 T
II 80.116 B 180.259 B 320.462 B 1.786 T 6.33 T 18.025 T 200.288 T 450.648 T 801.152 T
III 127.977 B 287.956 B 511.911 B 2.853 T 10.111 T 28.794 T 319.943 T 719.873 T 1.279 Q
IV 197.605 B 444.611 B 790.42 B 4.406 T 15.613 T 44.461 T 494.012 T 1.112 Q 1.976 Q
V 526.727 B 1.185 T 2.106 T 11.745 T 41.617 T 118.513 T 1.316 Q 2.963 Q 5.267 Q

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I 221.321 B 497.972 B 885.285 B 4.935 T 17.487 T 49.797 T 553.303 T 1.245 Q 2.213 Q
II 367.876 B 827.721 B 1.471 T 8.203 T 29.066 T 82.772 T 919.690 T 2.069 Q 3.678 Q
III 587.651 B 1.322 T 2.350 T 13.104 T 46.431 T 132.221 T 1.469 Q 3.306 Q 5.876 Q
IV 907.370 B 2.041 T 3.629 T 20.233 T 71.693 T 204.158 T 2.268 Q 5.104 Q 9.073 Q
V 2.418 T 5.441 T 9.674 T 53.934 T 191.102 T 544.195 T 6.046 Q 13.605 Q 24.186 Q

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I 885.285 B 1.991 T 3.541 T 19.741 T 69.948 T 199.189 T 2.213 Q 4.980 Q 8.852 Q
II 1.471 T 3.310 T 5.886 T 32.813 T 116.267 T 331.088 T 3.678 Q 8.277 Q 14.715 Q
III 2.350 T 5.288 T 9.402 T 52.417 T 185.726 T 528.885 T 5.876 Q 13.222 Q 23.506 Q
IV 3.629 T 8.166 T 14.517 T 80.935 T 286.773 T 816.633 T 9.073 Q 20.416 Q 36.294 Q
V 9.674 T 21.767 T 38.698 T 215.737 T 764.411 T 2.176 Q 24.186 Q 54.420 Q 96.745 Q

Challenge Final Boss Damage with HP reduction level 100[]

Level 100 HP Reduction multiplies the total HP to 0.8125 of their base HP

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I 2,213 4,466 8,804 46,040 163,088 464,389 5.159 M 11.609 M 20.638 M
II 75,104 166,013 300,368 1.656 M 5.87 M 16.717 M 185.749 M 417.936 M 742.996 M
III 664,004 1.511 M 2.679 M 14.911 M 52.835 M 150.456 M 1.671 B 3.761 B 6.686 B
IV 3.302 M 7.508 M 13.208 M 73.637 M 260.915 M 742.996 M 8.255 B 18.575 B 33.022 B
V 46.437 M 104.483 M 185.749 M 1.035 B 3.669 B 10.448 B 116.093 B 261.210 B 464.373 B

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I 9,493 21,340 37,924 211,348 748,816 2.132 M 23.692 M 53.308 M 94.77 M
II 341,188 767,653 1.078 M 7.607 M 26.956 M 76.763 M 852.93 M 1.919 B 3.412 B
III 3.07 M 6.908 M 12.282 M 68.471 M 242.611 M 690.873 N 7.676 B 17.272 B 30.705 B
IV 15.163 M 34.117 M 60.652 M 338.13 M 1.198 B 3.411 B 37.908 B 85.293 B 151.632 B
V 213.232 M 479.773 M 852.93 M 4.754 B 16.848 B 47.977 B 533.081 B 1.199 T 2.132 T

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I 37,924 85,309 151,648 845,341 2.995 M 8.529 M 94.77 M 213.233 M 379.08 M
II 1.364 M 3.07 M 5.458 M 30.431 M 107.827 M 307.054 M 3.411 B 7.676 B 13.646 B
III 12.828 M 27.634 M 49.128 M 273.885 M 970.444 M 2.763 B 30.705 B 69.087 B 122.821 B
IV 60.652 M 136.468 M 242.611 M 1.352 B 4.792 B 13.646 B 151.632 B 341.172 B 606.528 B
V 852.93 M 1.919 B 3.411 B 19.019 B 67.392 B 191.909 B 2.132 T 4.798 T 8.529 T

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I 131.130 M 294.796 M 524.192 M 2.922 B 10.355 B 29.489 B 327.661 B 737.239 B 1.310 T
II 317.246 M 713.420 M 1.268 B 7.072 B 25.058 B 71.357 B 792.860 B 1.784 T 3.171 T
III 684.821 M 1.540 B 2.739 B 15.269 B 54.103 B 154.067 B 1.711 T 3.852 T 6.847 T
IV 1.354 B 3.046 B 5.416 B 30.195 B 106.991 B 304.675 B 3.385 T 7.617 T 13.541 T
V 22.475 B 50.570 B 89.902 B 501.193 B 1.775 T 5.057 T 56.189 T 126.426 T 224.756 T

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I 601.827 M 1.354 B 2.407 B 13.420 B 47.551 B 135.411 B 1.504 T 3.385 T 6.018 T
II 1.456 B 3.276 B 5.825 B 32.474 B 115.063 B 327.661 B 3.640 T 8.192 T 14.562 T
III 3.144 B 7.074 B 12.576 B 70.114 B 248.433 B 707.454 B 7.860 T 17.686 T 31.442 T
IV 6.217 B 13.990 B 24.871 B 138.654 B 491.287 B 1.399 T 15.544 T 34.975 T 62.178 T
V 103.204 B 232.210 B 412.818 B 2.301 T 8.154 T 23.221 T 258.011 T 580.525 T 1.032 Q

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I 2.407 B 5.416 B 9.629 B 53.681 B 190.207 B 541.644 B 6.018 T 13.541 T 24.073 T
II 5.825 B 13.106 B 23.300 B 129.896 B 460.254 B 1.310 T 14.562 T 32.766 T 58.250 T
III 12.576 B 28.298 B 50.307 B 280.458 B 993.735 B 2.829 T 31.442 T 70.745 T 125.769 T
IV 24.871 B 55.960 B 99.485 B 554.617 B 1.965 T 5.596 T 62.178 T 139.902 T 248.714 T
V 412.818 B 928.840 B 1.651 T 9.205 T 32.617 T 92.884 T 1.032 Q 2.322 Q 4.128 Q

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I 39.162 B 88.112 B 156.648 B 873.279 B 3.094 T 8.811 T 97.903 T 220.284 T 391.615 T
II 65.094 B 146.459 B 260.377 B 1.451 T 5.143 T 14.646 T 162.734 T 366.152 T 650.936 T
III 103.979 B 233.961 B 415.928 B 2.318 T 8.215 T 23.395 T 259.953 T 584.896 T 1.039 Q
IV 160.554 B 361.246 B 642.216 B 3.580 T 12.685 T 36.124 T 401.385 T 903.117 T 1.605 Q
V 427.966 B 962.923 B 1.711 T 9.543 T 33.814 T 96.292 T 1.069 Q 2.407 Q 4.279 Q

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I 179.823 B 404.603 B 719.294 B 4.009 T 14.208 T 40.460 T 449.558 T 1.012 Q 1.798 Q
II 298.899 B 672.523 B 1.195 T 6.665 T 23.616 T 67.252 T 747.248 T 1.681 Q 2.988 Q
III 477.466 B 1.074 T 1.909 T 10.647 T 37.725 T 107.429 T 1.193 Q 2.686 Q 4.774 Q
IV 737.238 B 1.658 T 2.948 T 16.439 T 58.250 T 165.878 T 1.843 Q 4.147 Q 7.372 Q
V 1.965 T 4.421 T 7.86 T 43.821 T 155.271 T 442.158 T 4.912 Q 11.054 Q 19.651 Q

Difficulty Tier Rats! Fruitarian No More Tribal Smash Uhg A Thug! WereThings Under the Sea Rednex Galactic Snackbar Infested
I 719.294 B 1.618 T 2.877 T 16.039 T 56.833 T 161.841 T 1.798 Q 4.046 Q 7.192 Q
II 1.195 T 2.690 T 4.782 T 26.661 T 94.466 T 269.009 T 2.988 Q 6.725 Q 11.955 Q
III 1.909 T 4.297 T 7.639 T 42.588 T 150.902 T 429.719 T 4.774 Q 10.743 Q 19.098 Q
IV 2.948 T 6.635 T 11.795 T 65.759 T 233.003 T 663.514 T 7.372 Q 16.588 Q 29.489 Q
V 7.86 T 17.863 T 31.442 T 175.286 T 621.084 T 1.768 Q 19.651 Q 44.216 Q 78.606 Q

  • This table was made considering that the HP was rounded up, though abbreviations are rounded down.

Special Challenges[]

During Events it is possible to see special Challenges:

Series Challenges[]

Series challenges are solo only and involve an infinitely escalating set of Creatures, starting at Tier 0. Returning to a Challenge starts you at the first Creature you have not defeated. Every 5 Creatures is a Boss but does not have the 4x HP bonus.

You can manually enter a level higher than the one you have currently completed to skip levels and be automatically rewarded for the ones that you skipped, if you defeat the chosen stage.

Series challenges currently have a maximum tier of 275.

Infinite World Challenge[]

The only Series Challenge is the Infinite World Challenge. This challenge has 170 stages per tier with one creature per stage, representing all 170 unique creatures in IOU. The series challenge keeps track of how many stages the player has completed, rewarding 10 Challenge Points Challenge Point every stage. Every stage completed rewards 1% bonus damage, and every 5 stages completed rewards 5% bonus damage. The % bonuses within Series stack; total damage bonus from the challenge can be seen under the Series tab of the Challenge screen. Once all 170 stages have been completed, the player will be able to challenge the next tier.

The difficulty rating is given by:

The levels of the monsters in the infinite challenge is given by:

Both the Series total percentage bonus and Challenge Point Milestones bonus are added together.

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