Overview

A modular C++ engine with a visual editor. Drive an LCD from an ESP32, run the same project on Windows through SDL3, or drop the renderer entirely and ship a headless service. Every part is a package. Take what you need.

→ download the editor read the docs
■ 320 × 240 · RGB565 · rendered by the engine

News

all posts →
Deki 0.20: faster, smoother, and more screens A release about performance: games draw faster, frames no longer tear, Deki drives many more screens, scrolling feels right, and the settings choose themselves. Deki in Japanese, Chinese and Korean Deki 0.19: the editor, the packages, the website and the docs in Japanese, Simplified Chinese and Korean, switched from one setting. Deki is open source The engine, the editor and every package are on GitHub under Apache 2.0, and the editor is a download for Windows and Linux with its compiler inside.

Visual editor

Fields tagged DEKI_EXPORT are picked up at build time by the C++26 static-reflection codegen: sliders, ranges, undo and serialization, all from that one tag.

The Deki editor with the demo project open: hierarchy, scene view with the demo's launcher, inspector and console.
■ the editor running the demo, edited live while it plays · watch on YouTube
tour the editor → about the engine →

Deki is free and Apache 2.0, built by one person after work. Donations buy more hours and more boards to test on.

0 € / month of 200 €: one focused day a week on Deki
→ put a day into Deki browse the packages