Aperture's test equipment has escaped into the multiworld. Unlock cubes, buttons, gels and portal capabilities to solve a shuffled single-player campaign.
The v0.8.2 APWorld has 90 active numeric check locations. With default options, 63 are generated: 60 chamber completions and three item pickups. Two cutscene checks and 25 optional monitor, den and door checks are off by default. Thirteen story-achievement definitions are not added to the active location table. A separate victory event has no numeric location ID.
Actions and milestones that can send a check to your multiworld.
90 locations
Container Ride Completion
Complete the Container Ride chamber.
Chapter 1
Portal Carousel Completion
Complete the Portal Carousel chamber.
Chapter 1
Portal Gun Completion
Complete the Portal Gun chamber.
Chapter 1
Smooth Jazz Completion
Complete the Smooth Jazz chamber.
Chapter 1
Cube Momentum Completion
Complete the Cube Momentum chamber.
Chapter 1
Future Starter Completion
Complete the Future Starter chamber.
Chapter 1
Secret Panel Completion
Complete the Secret Panel chamber.
Chapter 1
Wake Up Completion
Complete the Wake Up chamber.
Chapter 1
Incinerator Completion
Complete the Incinerator chamber.
Chapter 1
Laser Intro Completion
Complete the Laser Intro chamber.
Chapter 2
Laser Stairs Completion
Complete the Laser Stairs chamber.
Chapter 2
Dual Lasers Completion
Complete the Dual Lasers chamber.
Chapter 2
Laser Over Goo Completion
Complete the Laser Over Goo chamber.
Chapter 2
Catapult Intro Completion
Complete the Catapult Intro chamber.
Chapter 2
Trust Fling Completion
Complete the Trust Fling chamber.
Chapter 2
Pit Flings Completion
Complete the Pit Flings chamber.
Chapter 2
Fizzler Intro Completion
Complete the Fizzler Intro chamber.
Chapter 2
Ceiling Catapult Completion
Complete the Ceiling Catapult chamber.
Chapter 3
Ricochet Completion
Complete the Ricochet chamber.
Chapter 3
Bridge Intro Completion
Complete the Bridge Intro chamber.
Chapter 3
Playing with others
The single-player Portal 2 campaign participates in an Archipelago multiworld. Atlas/P-body co-op chambers are not the campaign covered here.
Known scope and limitations
Install the paired 0.8.2 sourcemod and APWorld. Launch the separate Steam sourcemod entry and keep the Portal 2 client open with the documented netconport setting.
Choose chambers in the client's Maps tab. The current client no longer implements the old extras.txt selection/write flow still mentioned in parts of the README.
The release changes map-load initialization and restores complete map names. Those source changes do not establish a successful playthrough or a fix for every reported gel requirement.
The client forwards server display text through its game-console channel without escaping it. Use rooms and participants you trust; this path has not been shown to safely separate arbitrary display text from game commands.
Restart the client before changing seeds or slots. The map menu keeps shared state, and reconnect does not provide durable recovery of all checks, queued commands or victory notifications.
Traps are optional. The Slippery Floor handler has no explicit friction restore, and replayed item packets can reapply traps; leave traps disabled if these limitations are unsuitable for your session.
Windows and Linux installation paths are documented, including a Proton fallback. Exact game-build compatibility and Steam Deck operation have not been independently verified.
The package includes a VPK of textures, models and other assets. Contributor credits exist, but the reviewed materials do not establish provenance and redistribution terms for every asset.