Between

Home: https://web.archive.org/web/20150131015825/http://www.esquire.com/features/best-and-brightest-2008/rohrer-game
State: beta, inactive since 2010
Download: https://sourceforge.net/projects/hcsoftware/files/Between/
Keyword: puzzle, multiplayer, open content
Code repository: @see-download
Code language: PHP, C++
Code license: ? (really PD)
Code dependency: SDL
Assets license: Public domain
Developer: Jason Rohrer

Puzzle game.

Building