Zach Boothgroverburger

I write software: simulations, tools, games.

Known online as groverburger. Software lead on the SHERPA team at NASA Ames. Founder of Booth Technologies and SpinAttack Studio.

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Honma

相場の神様

Munehisa Honma was the Warren Buffett of 18th-century Japan, a rice trader so successful his countrymen named him the God of the Markets. I'm translating his collected teachings into English for the first time.

Translation · Digital humanities Read about the project
Front cover of The Wisdom of Munehisa Honma, with the title in English and 本間宗久の叡智集 in vertical Japanese type against a warm paper ground

Vector Prospector

Vector Prospector: a neon-outlined cave system in deep red and violet, the player ship drilling between jagged rock islands

Arcade action roguelite with simple, precise movement. Released on Steam.

Lua · LÖVE · Steam Project page On Steam

Florp Farming

Florp Farming: hand-drawn apple trees, pink florps, blue gems, magnets, and beehives scattered across a cream field

Shake tree, get apple, feed florp, get gem, profit. Now a full incremental automation game on Steam.

Lua · LÖVE · Steam Project page On Steam

g3d

Animated g3d demo: a textured Earth and Moon rendered in real time against a starfield

Simple and easy to use open-source 3D library for Lua/LÖVE. Over 750 stars on GitHub.

Lua · LÖVE · Open source Project page Source on GitHub

Tools

GrobPaint

Lightweight image editor somewhere between MS Paint and Paint.NET. Multiplatform by default.

Image editor

The Open 85-85 List

Open-source weekly stock screen: every US stock with earnings and relative-strength ratings of 85 or higher, percentile-ranked against the full market.

Stock screener

Sapling

Graphical editor for syntax trees for use in the field of Linguistics. Used by professors at UCSC and UW.

Linguistics tool

Jam games

Into the Castle

Fast-paced action platformer with tight controls. Made in 48 hours for Ludum Dare 48.

Ludum Dare 48 · 48 hours

Mermaid Princess

Chess board game auto battler. Made in one week for LOVE Jam 2025.

LOVE Jam 2025 · one week

Starshot

Experimental first-person shooter built around speed and procedural generation.

FPS · Procedural

You Are Person Guy

A puzzle game where you psychically possess different Guys with unique abilities.

Puzzle

Notes

All notes

Currently

  • Software lead, SHERPA team — NASA Ames Rover path planning, POMDPs, AI research
  • Booth Technologies — founder boothtechnologies.com
  • SpinAttack Studio — founder spinattack.studio · two shipped Steam titles

Contact

Booth Technologies takes on contract software work. The fastest way to reach me is email: [email protected].