Top down 2D shooter game that involves blowing up tanks
Latest commit 757984e Feb 18, 2017 @spajus committed on GitHub Update

Tank Island

Tank Island is an open source 2D top down shooter game that was created with Ruby using Gosu game development library while writing this book.

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Tank Island Game

Tank Island Game

Gameplay video on YouTube

Book: Developing Games With Ruby

Complete process of building this game is described step by step in this free to read book:

Developing Games With Ruby


Before installing, make sure you have:

  • Ruby installed, preferably through rbenv, not rvm.
  • ImageMagick (gem install rmagick should work).
  • Gosu prerequisites for Mac, Linux or Windows

To install it, run

$ gem install tank_island

Starting the game

There are several ways to start the game.

Running in 800x600 window mode

$ tank_island

Running with custom resolution

$ w=1600 h=1200 tank_island

Running full screen with custom resolution

$ fs=1 w=1200 h=800 tank_island



  • W A S D moves your tank.
  • Mouse left click shoots.
  • ESC goes into menu and away from it.


  • R respawns your tank.
  • T spawns an enemy tank under mouse cursor.
  • F1 enters debug mode.
  • F2 toggles profiling