Undertale Arena Game Codes
Updated: April 20, 2026
About Game: Undertale Arena offers an Undertale-like experience with many comparable mechanics and endless characters to play as. Some of the most popular characters from the Undertale series appear, including Sans (the all-time favorite), Papyrus, Muffet, Chara, and many more.
31 Active Codes
1 Expired Codes
Codes from this game are case sensitive. They should be typed out exactly as they are shown.
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This code credits your account with 1 Life Geno!Sans And 1 Life Error!Sans.
This code credits your account with 20 Gold.
This code credits your account with Unknown Reward.
This code credits your account with 100 Souls, 200k XP, 200k DT, 500 Gold.
This code credits your account with 150 Souls, 250k XP, 250k DT, 500 Gold.
This code credits your account with 125 Souls, 150k XP, 200k DT.
This code credits your account with 1 Life Geno!Sans And 1 Life Error!Sans.
This code credits your account with 1k XP, 1k DT, 40 Souls, And Bonus Items.
This code credits your account with 60k XP, 60k DT, And 70 Gold.
This code credits your account with 300 Gold.
This code credits your account with 60k XP And 60k DT.
This code credits your account with 50k XP, 30 Souls, And 50k DT.
This code credits your account with A Cosmetic.
This code credits your account with Souls, EXP, And DT.
This code credits your account with Free Rewards.
This code credits your account with Souls.
This code credits your account with Free Rewards.
This code credits your account with 1 Souls, 100,000 Exp And 1 DT.
This code credits your account with 188 Souls, 188,888 Exp and 188,888 DT.
This code credits your account with 130 Souls, 300,000 XP, 300,000 DT and 730 G.
This code credits your account with 150 Souls, 200,000 XP, 200,000 DT and 200 G.
This code credits your account with Soul, 2 EXP, 3 DT and -1 G.
This code credits your account with 200,000 Exp, 100 Souls, 200,000 DT and 500 Gold.
This code credits your account with 1 Exp, 1 Soul, 1 DT and 500 Gold.
This code credits your account with 1 Exp, 1 Soul, 1 DT, 500 Gold, 1 Life Ink, 1 Life Genosans and 1 Life Error Sans.
