Portal 2

After the events of the first game, she was placed in stasis until eventually woken up again.

The sequel again takes place at Aperture Science Labs, which has now been overrun by decay and nature.

Much more than in the first game, Chell moves past the clean test chambers and explores the gloomy industrial setting of the laboratory.

Just like in the first game, the gameplay is based around portals.

By shooting a starting portal and ending portal at suitable surfaces, certain uncrossable gaps can be bridged.

Just like in the first game, there are also many test chambers where puzzles need to be solved, using cubes, turrets, platforms, and special portal tricks to gain a lot of speed.

GLaDOS makes a return to tease Chell and she plots revenge for her destruction, but there are a large number of twists that make her role very different from in the first game.

Chell receives help from Wheatley, a small robot who opens entrances for her and provides witty insights about the environment.

New elements to the sequel's gameplay include light bridges, laser redirection, and paint-like gels, incorporated through the work of the student project Tag: The Power of Paint .

Gels provide extra speed, a jump, or neutralize the effects.

They can also be used with objects such as cubes or turrets.

The game’s two-player cooperative mode is entirely new and features its own entirely separate campaign with a unique story, test chambers, and two new player characters (Atlas and P-body).

The PlayStation 3 version incorporates some elements of the Steamworks toolset and allows for cross-platform games against PC players.

Portal 2 for PlayStation 3 is currently worth €13.11 loose, €10.46 complete in box, and €16.55 factory sealed. Prices are based on real sales and update regularly on Gamevaro.

Portal 2 has a steady sales history on the tracked marketplaces, meaning it trades hands regularly and isn't considered particularly rare.

Loose means cartridge or disc only, CIB (complete in box) includes the original box and manual, and sealed means factory-sealed and never opened. For Portal 2, loose is €13.11 and CIB is €10.46 — CIB commands a premium because original boxes and manuals are fragile and often don't survive.

The PAL version of Portal 2 is currently worth €13.11 loose, versus €10.52 for NTSC-U. Regional price differences usually come down to print run size and regional collector demand.