Note: This usually requires specific hardware or software workarounds to play on standard controllers/KBM. 🛠️ Summary of Key Features Description 🤖 Adds "Art Therapy" track (approx. 2-3 hours of gameplay). 📊 Leaderboards Tracks efficiency (time/portals) across the community. 🏗️ Puzzle Maker In-game tool for creating and sharing custom test chambers. 🌌 Infinite Content

: Access to over 600,000 community-made maps . You can browse, vote, and play an endless stream of content.

: Adds a third portal (the Time Portal) to travel between two different timelines. Get Peer Review DLC - Xbox

: A professional-grade prequel with a full story and challenging puzzles.

This transformed the game's longevity by introducing the .

The "Complete" edition typically refers to the base game along with the three primary official expansions. 1. Peer Review (DLC 1)

: A new cooperative track for ATLAS and P-Body . You assist GLaDOS in hunting a "mysterious intruder" within Aperture.