Press Tilda is a Unity-based puzzle platformer in which you can bring up a console to type in commands and change the layout of a level directly. By typing in certain keywords, players can swap the position of their character with another item in a stage, send an attack order to one of the robot guards, push objects or even set them on fire.

There is a version of the same game that can be downloaded and played offline as well. This Global Game Jam 2010 submission has about seven individual room challenges to beat. (Mac/Windows, 27.4MB)