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System Shock 2: 25th Anniversary Remaster official Steam artwork

COMMUNITY INTEGRATION

System Shock 2: 25th Anniversary RemasterArchipelago randomizer mod

Explore the Von Braun with access cards, equipment and character upgrades arriving from other worlds. Shuffled enemies and replicators change familiar routes, while alternate victory conditions can shorten the journey.

Maintained by Partatio

Installation guide Maintainer repository
GAME MECHANICS

Explore game mechanics

Browse possible checks, rewards and settings. What appears in your game depends on your World options.

Source catalog Release APWorld 0.5.2 · Remaster KPF 0.5.2World 0.5.2

The hash-verified 0.5.2 World defines 1,628 check candidates. With its default settings, duplicate-location compression excludes 596 nearby or repeated pickups, chemicals and manifests are off (176 candidates), and the starting-wrench check is off (1), leaving 855 checks. That total includes 147 Cyber Module Shop checks, each purchased in-game for 6 Cyber Modules, and five Replicator purchase checks. The default item pool also contains 855 instances, plus one precollected Science Access Card. These are source-defined pool counts, not a promise that every candidate survives a generated seed. No seed or game session was run.

Actions and milestones that can send a check to your multiworld.

1,628 locationsDefault marks checks from configurations selected by standard options; the generated set can still vary with logic and seed.

Directly After airlock, can't receive items until collected

Default
Med/Sci 1

SSU replicator purchase 1

Default
Recreation C

SSU replicator purchase 2

Default
Recreation C

SSU replicator purchase 3

Default
Recreation C

SSU replicator purchase 4

Default
Recreation C

Shuttle bay replicator purchase

Default
Command A

In body at start of game

Med/Sci 1

Next to body near Dr Watts in R&D

Default
Med/Sci 1

In a body in R&D inside room

Default
Med/Sci 1

Next to body in closet in R&D

Default
Med/Sci 1

In body in chemical storeroom

Default
Med/Sci 1

In body in xerxes circular room

Default
Med/Sci 1

In body after airlock upper floor

Default
Med/Sci 1

Above on ledge behind help desk near medical entrance

Default
Med/Sci 1

In body near medical entrance

Default
Med/Sci 1

In body near medical entrance 2

Med/Sci 1

On desk near medical entrance

Default
Med/Sci 1

Near battery recharger and turrets

Default
Med/Sci 1

In Pipe Hybrid in xerxes circular room

Default
Med/Sci 1

Directly after airlock to the left above on beam

Default
Med/Sci 1

Playing with others

A solo System Shock 2 campaign exchanges items with other Archipelago worlds. Players may progress together or at different times while the server is available; keep the client connected during play. Shared-save co-op is not claimed.

Known scope and limitations

  • Install both ss2.apworld and Archipelago.kpf from release 0.5.2. The APWorld manifest declares Archipelago 0.5.2, the README says 0.5.1 or newer, and the supplied YAML template requires 0.6.7; use 0.6.7 or newer to meet every published version declaration. Both the player and seed generator need the APWorld. Never update the mod or world in the middle of a run.
  • This listing covers the Windows 25th Anniversary Remaster. Put Archipelago.kpf in the game's mods folder and enable it when starting a new game. The classic edition uses a different .7z package, SS2Tool and SCP beta8; do not apply those classic instructions to the remaster. Linux, Proton and console integration support are not established here.
  • Start System Shock 2 Client from the Archipelago launcher and connect before starting the game or loading a save. For the remaster, select the Nightdive Studios/System Shock 2 Remastered folder under Windows Saved Games, not the installation directory. Changing host.yaml paths requires restarting the client.
  • Received items only begin arriving after leaving the airlock and collecting the first location. Keep progression items: losing one can require recovery through the game's console or Archipelago. With chemical checks enabled, the first vanadium and two antimony items are progression-critical.
  • Back up saves and use a dedicated campaign per room and slot. The inspected bridge compares a shortened seed identifier, not a complete seed-and-slot identity. Its local files are cleared on client shutdown; do not assume offline checks are durably preserved or that it prevents every wrong-save combination.
  • The inspected client can resend already observed checks, and malformed bridge data can repeatedly enter its error handler. If synchronization reports errors, follow the maintainer's restart-and-reload guidance rather than continuing unchecked. These code-review concerns have not been reproduced in a game session by Panludia.
  • Native shared-save co-op is not established for this integration, even though the base game offers multiplayer. A published release and inspected scripts do not constitute a security certification or an independently completed campaign.