Thats the premise of Chronology, an indie platform-puzzler game on display at the Game Developers Conference (GDC) here this week. The game will be released on the Steam online gaming platform and for mobile devices this summer for between $5.99 and $7.99, according to developers at Denmark-based Osao Games. In Chronology, the amnesiac inventor pairs up with a talking snail, and players must figure out how to use the two characters unique powers to control time and traverse the two-dimensional platform-style levels.