Mindustry Classic

A pixelated, factory-based sandbox tower defense game.

The classic, pixelated version of Mindustry. Create elaborate supply chains of conveyor belts to feed ammo into your turrets, produce materials to use for building, and defend your structures from waves of enemies.
Currently has 12 built-in maps and a map editor for creating your own. Supports multiplayer over LAN and WAN, and cross-platform play with PC and Web versions.