Hi, I'm René "Havoc" Nicolaus.

Senior Software Engineer • Indie Game Developer

I build engines, editors, tools, libraries, web apps, and games - from a Half-Life mod to a Doom-style engine.

A Doom-style game engine for a future game project.

Featured Projects

A 3D take on Sokoban puzzle gameplay.

A shell extension DLL for File Explorer on Windows 11 that provides animated image previews and representative static thumbnails.

A beatable demo of my discontinued ray casting engine.

A terminal game and the official showcase project for havTermKit.

06/02/2026 1 min read

website update

05/15/2026 1 min read

havini havcson havjson cpp library programming

05/04/2026 1 min read

havpreviewhandler cpp win32 windows shell-extension programming update

05/02/2026 1 min read

hav-commit-guard vs-code extension typescript programming

04/28/2026 1 min read

havtermkit havcodemetrics c cpp library app programming website update