{"slug": "show-hn-simtower-decompiled-rewritten-and-in-the-browser", "title": "Show HN: SimTower, Decompiled, Rewritten, and in the Browser", "summary": "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.", "body_md": "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.\n\nI 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.\n\nI 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 >.<\n\nI 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/)\n\nsource: [https://github.com/Jonahss/concilia-tower](https://github.com/Jonahss/concilia-tower)\n\nComments URL: [https://news.ycombinator.com/item?id=49676394](https://news.ycombinator.com/item?id=49676394)\n\nPoints: 1\n\n# Comments: 1", "url": "https://wpnews.pro/news/show-hn-simtower-decompiled-rewritten-and-in-the-browser", "canonical_source": "https://kvetch.io/conciliatower/", "published_at": "2026-09-12 19:40:21+00:00", "updated_at": "2026-09-12 19:55:04.217223+00:00", "lang": "en", "topics": ["ai-tools", "generative-ai", "developer-tools"], "entities": ["SimTower", "Claude Code", "Ghidra", "Jonahss", "Concilia Tower", "GitHub", "Hacker News"], "alternates": {"html": "https://wpnews.pro/news/show-hn-simtower-decompiled-rewritten-and-in-the-browser", "markdown": "https://wpnews.pro/news/show-hn-simtower-decompiled-rewritten-and-in-the-browser.md", "text": "https://wpnews.pro/news/show-hn-simtower-decompiled-rewritten-and-in-the-browser.txt", "jsonld": "https://wpnews.pro/news/show-hn-simtower-decompiled-rewritten-and-in-the-browser.jsonld"}}