It has been revealed that the first batch of Portal 2 DLC will feature new test chambers, an online leaderboard, a challenge mode for single and multiplayer modes, plus some additional features that weren’t listed.
The DLC is targeted for a summer release, and will be free across all relevant platforms. If you’re still undecided about the game then why not read our review, for science. You monster.
Source: Press Release
TheArgonian
Gotta love Valve