by Team RSTAR
UNDERTALE: Project Soul Skirmish Codes
Working UNDERTALE: Project Soul Skirmish Codes
Last updated August 21, 2026
No working codes right now
We're tracking UNDERTALE: Project Soul Skirmish and will list codes here the moment the developers release them. If you spot one first, send it our way below.
How to redeem codes in UNDERTALE: Project Soul Skirmish
- Launch UNDERTALE: Project Soul Skirmish on Roblox.
- Look for a Codes, Shop or settings button — usually on the side of the screen.
- Paste the code exactly as shown above. Codes are case-sensitive.
- Press redeem to claim your reward.
Codes expire without warning — if one fails, it was almost certainly pulled by the developer.
Found a code we're missing?
Submit it and we'll verify it before it goes live.
About UNDERTALE: Project Soul Skirmish
!!! IMPORTANT !!! This is a ROUND-BASED game! In-game stats DO NOT save upon leaving the server, and PROGRESS IS LOST FOR ALL PLAYERS when a new round begins! !! This game is balanced around free-for-all gameplay. Expect to lose a lot, and don't expect your battles to be one-versus-one combat. !! -- VERSION 1.4 PART 0.5-- - DEFEND Rework - Simplification of ACTs - Rewards for not winning - More! --====================================-- PROJECT: Soul Skirmish is an UNDERTALE/DELTARUNE arcade-style, PVP-focused action RPG. You've been thrown headfirst into a strange, yet familiar world with one task - SURVIVE. Other people around you are strong, and seek to defeat you in order to grow stronger. What will you do? Will you FIGHT back and grow stronger above all threats that face you, or will you seek to PROTECT the sanctity of the world? --PUBLISHING-- Developed by Team RSTAR. Inspired by the FIGHT OR PROTECT series by magic277.