Screeps
The world's first MMO strategy sandbox game for programmers
Screeps is a first MMO game for programmers. You play in an endless sandbox real-time world with funny 2D graphics, but instead of manually controlling your units (creeps) you do it by JavaScripting. Yes, programming in actual JavaScript on the engine run in the full-scale server-side compiler which allows anything in the game world. You build real AI to control your units which live in the game autonomously while you may be offline and just drop in from time to time. It's the first game where success depends on your programming skills.
