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SPECIFICTION
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Usagi Engine

usagiengine.com

Free plan WebWindowsmacOSLinux
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Spec score 8.1 #58 of 92 in Game Engine Software

Spec sheet

Purpose
Usagi is a 2D game engine for making pixel art games in Lua 5.5.Read 9 Oct 2026 · usagiengine.com
Free plan
YesRead 24 Sep 2026 · usagiengine.com
Maker
Usagi is made by Brett Chalupa.Read 9 Oct 2026 · usagiengine.com
Asset tools
Users bring their own sound effects, sprite editor, and music tools.Read 9 Oct 2026 · usagiengine.com
Built-in pause menu
The built-in pause menu includes sound and music volume, fullscreen toggle, and per-game keyboard and gamepad remapping.Read 9 Oct 2026 · usagiengine.com
Console export
NoRead 24 Sep 2026 · usagiengine.com
Default constraints
Usagi uses a 320x180 default resolution, a 16x16 default sprite grid, and one sprites.png texture file.Read 9 Oct 2026 · usagiengine.com
Developer support
The site directs users to open an issue for feedback, feature requests, and bugs, and links to Discord and Reddit communities.Read 9 Oct 2026 · usagiengine.com
Export
A single export command packages games for Linux, macOS, Windows, and the web.Read 9 Oct 2026 · usagiengine.com
Installer integrity
The installer verifies the downloaded release with a SHA-256 checksum.Read 9 Oct 2026 · usagiengine.com
Live reload
The development command watches code and assets and applies saved changes without losing game state.Read 9 Oct 2026 · usagiengine.com
Mobile export
NoRead 24 Sep 2026 · usagiengine.com
Multiplayer tools
NoRead 24 Sep 2026 · usagiengine.com
Notable limits
Usagi does not target mobile or VR and is not built for medium-to-large polished games.Read 9 Oct 2026 · usagiengine.com
Save data
One function saves and loads game state as a Lua table.Read 9 Oct 2026 · usagiengine.com
Scripting languages
Lua 5.5Read 24 Sep 2026 · usagiengine.com
Source code model
open_sourceRead 24 Sep 2026 · usagiengine.com
Target platforms
Linux,macOS,Windows,webRead 24 Sep 2026 · usagiengine.com
Visual scripting
NoRead 24 Sep 2026 · usagiengine.com
Who it is for
The maker describes it as suited to rapid pixel-art prototyping, people new to game programming, Pico-8 users who hit the token limit, and people seeking something simpler than Love2D.Read 9 Oct 2026 · usagiengine.com

Plans and prices

Usagi Engine Free Free software; dedicated to the public domain Read 9 Oct 2026 · usagiengine.com

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Where Specifiction places it

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