
Can read every single byte from the data file for lastest version of Undertale, Deltarune, and most other GameMaker: Studio games (GM:S 1.4 and GMS2 bytecode versions 13 to 17 are currently supported) for every platform and then recreate a byte-for-byte exact copy from the decoded data.


Choose this if you don't care about finding the right executable in-between of ~300 dll's, or if the stability issues from the Single file build affect you.

Note, that you can update to the bleeding edge releases at any time from within the settings menu of UndertaleModTool. I heard you like digging deep into GameMaker games like Undertale/Deltarune, so here's a tool just for you!īoth the latest stable release and the most cutting edge version can be downloaded from the table below! (seeing such an amazing tool fills you with DETERMINATION.)
