This is the most delicate part. Zeebarf has not publicly released the source code. Distributing decompiled code falls into a legal gray area:
Notably, Zeebarf moved on to original projects (e.g., Cry of Fear collaborations, S.C.A.R.). He has not issued DMCA takedowns against ST2 source repos, likely due to low commercial impact, but that doesn’t make it legal. slendytubbies 2 open source
Slendytubbies 2 is a fan-made indie horror game that reimagines the colorful Teletubby-like characters as grotesque, nightmarish antagonists. While the original game gained notoriety for its unsettling atmosphere and low-fi graphics, the idea of "Slendytubbies 2 open source" raises questions about creative ownership, community development, and the technical and ethical implications of releasing or recreating such a game under open-source terms. Risks:
Zeebarf developed Slendytubbies 2 around 2015–2016 and released it freely as a standalone Unity game. It was never officially open-sourced. However, over time, several factors led to source code circulation: This is the most delicate part
Thus, “open source” in this case is post-hoc decompiled code, not a developer-sanctioned repository.
The ST2 multiplayer mode uses a custom UDP-based protocol. Some developers have created open-source server emulators (Python, C++) that can host ST2 multiplayer matches without the original server binaries.