Automatically discovered as an actively maintained fork of Butterscotch (ButterscotchRunner/Butterscotch). PS2SP only auto-adds a fork when its default branch has commits ahead of the registered parent, one of those fork-specific commits is newer than 180 days, and the fork has at least one published non-draft GitHub release.
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Butterscotch
🥧 An open source re-implementation of GameMaker: Studio's runner (YoYo Runner), targeting Undertale v1.08 (Bytecode Version 16)
Latest releasev1.3
Release dateAug 4, 2026
Last commitAug 4, 2026
Repositorygithub
Stars67
Upstream statusNot archived