Portal 2 Community Mod, Portal Reloaded, adds 20 levels designed for co-op play and features the new time-traveling portal.

Despite its name, it doesn't completely revolutionize the Portal concept. Instead, this is a fully voice-acted expansion that details a key event between Portal 1 and 2.

Games Puzzle A fan-made, 7-hour Portal 2 prequel just hit Steam for free and it's so good that I'm sad Valve stopped making Portal all over again ...

Today, Valve launched the highly anticipated first-person puzzler Portal 2, and the game appears to have critical success well in hand. While Portal 2's commercial performance remains to be seen ...