Terraria is a 2D action-adventure sandbox video game developed by Re-Logic. The game was initially released for Microsoft Windows in May 2011, and has since been released for various other platforms and devices. Gameplay of Terraria features exploration, crafting, building, and combat with a variety of creatures in a procedurally generated 2D world. Terraria received generally positive critical reception upon release, with direct comparisons to Minecraft and praise given to its sandbox elements. By February 2017, the game had sold over 20 million copies across all platforms.