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William Peytz

Introducing PeytzGames

I bought PeytzGames.com — a new home for the games I've made, and the ones still coming.

Alongside the AI and startup work, I keep coming back to making games. They’ve been scattered across domains and side projects for a while, so I’m giving them a home: I just bought PeytzGames.com, and that’s where my games will be released going forward — the ones I’ve already made, and the ones still coming.

Games are my favorite kind of side project. They have a tight feedback loop — you can feel within minutes whether something is fun — and every one of them has forced me to learn something new, whether that’s game balance, real-time rendering, or getting an LLM to grade answers fairly.

What’s in the collection so far

  • Blocks — an original falling-block puzzle you can play right in the browser. Click the board, use the arrow keys, and see how long you survive.
  • LifeRunner.io — a strategy-based life simulation where time, energy, and money are all limited. The point isn’t to win; it’s to feel the tradeoffs of everyday decisions compounding into long-term outcomes.
  • LastNameLegacy.com — I show you a famous surname, you give me the first name. Two modes (historical and living people) and an LLM-assisted scorer that grades how close your answer got.
  • PeytzPvP — a Hardcore Games-style PvP plugin for Minecraft Paper servers: round-based arenas, chest loot, kits, and a winner. A love letter to the early-2010s Minecraft scene, built with modern Java.
  • EloQuiz.dk — adaptive math practice built on an Elo-rating system, where students and questions rate each other so you’re always playing at the edge of your ability. It started as my BSc thesis, but at its core it’s matchmaking — the same idea that powers competitive games.

More coming

This is an ongoing collection, not a finished one. I have more game ideas queued up than time to build them, which is exactly how I like it. New games will be released on PeytzGames.com as they’re ready, and you can always find them on PeytzGames.com.

If you try any of them, I’d love to hear what you think — the fastest way to reach me is by email.