Show HN: SimTower, Decompiled, Rewritten, and in the Browser

Developer Jonahss released Concilia Tower, a browser-based WASM rewrite of SimTower built over 6 months with Claude Code, on GitHub and Hacker News. The project replicates the original game's functionality from a Ghidra decompilation of the binary, an AI-generated summary of the original source code, and the developer's memory of the gameplay, and it parses a user-provided original binary to extract the game's original assets rather than using new art. The developer stated he "didn't look at a single line of code Claude wrote" and instead spent hours playing through the game to verify behavior.

I wanted to re-play SimTower but found it too difficult to get running through emulation. Instead, I worked for 6 months with Claude Code on a complete rewrite, replicating all the functionality from the a Ghidra decompilation of the binary, am AI-generated summary of the original source code and my memory of the gameplay. Then deployed it to the web as WASM. I wanted the original feel of the game, so didn't create new art. Instead, you load an original binary you provide, and the on-page code parses it and pulls out the original assets. I didn't look at a single line of code Claude wrote, but spent hours playing through the game and nitpicking every little behavior. A lot of time was spent convincing myself that the elevators just ARE that hard to get right .< I hope everyone can enjoy this game again. Did a writeup here: https://www.wyldcard.io/blog/simtower-remake-playable-in-bro... https://www.wyldcard.io/blog/simtower-remake-playable-in-browser/ source: https://github.com/Jonahss/concilia-tower https://github.com/Jonahss/concilia-tower Comments URL: https://news.ycombinator.com/item?id=49676394 https://news.ycombinator.com/item?id=49676394 Points: 1 Comments: 1