Grass Tower Defense

Grass Tower Defense is a strategy game by Kang Jung Min, submitted to the js13kGames 2025 competition. Like every js13k entry, it was built from scratch in under 13 kilobytes — code, art and audio all included — a constraint that rewards focused, clever design.

We catalogue it because it represents the spirit of the size-limited game jam: a complete, playable experience distilled to its essence. Open it on the official js13k showcase to see what fits in 13KB.

Most js13kGames entries use keyboard or mouse controls. Open Grass Tower Defense on the official js13kGames page to read its in-game instructions, as controls vary per entry.

Generally: arrow keys or WASD for movement, the mouse for point-and-click titles, and space for primary actions. Many entries show their controls on a title screen.