PanludiaBlack Mesa Inbound: Reached
Reach Black Mesa Inbound to send a check; this is a map-arrival milestone, not a separate mission-clear requirement.
COMMUNITY INTEGRATION
Half-Life (Sven Co-op)Archipelago randomizer mod
Connect a co-op Sven lobby to Archipelago through mission, weapon and equipment unlocks. Version 0.4 includes four campaign choices and optional Suspension class/tier goals, with revised starter, legacy-check and item-history handling.
Maintained by barretg / hl1-sven-ap contributors
GAME MECHANICS
Explore game mechanics
Browse possible checks, rewards and settings. What appears in your game depends on your World options.
The source catalog has 731 checks: 383 across the four campaign ports and 348 for the optional Suspension arcade map. Standard options expose 187 checks: Half-Life with its intro tram mission excluded, including 17 mission clears, 34 map arrivals, 120 charger discoveries and 16 first-weapon finds. Campaign toggles, charger settings and Suspension options change the generated set; these totals describe the World tables, not a tested seed.
Actions and milestones that can send a check to your multiworld.
731 locationsDefault marks checks from configurations selected by standard options; the generated set can still vary with logic and seed.
Anomalous Materials: Part 1 Reached
DefaultReach Anomalous Materials: Part 1 to send a check; this is a map-arrival milestone, not a separate mission-clear requirement.
Anomalous Materials: Health Charger 1 (Part 1)
DefaultPress use on this health charger to send its check; it counts even when empty.
Anomalous Materials: Health Charger 2 (Part 1)
DefaultPress use on this health charger to send its check; it counts even when empty.
Anomalous Materials: Health Charger 3 (Part 1)
DefaultPress use on this health charger to send its check; it counts even when empty.
Anomalous Materials: Part 2 Reached
DefaultReach Anomalous Materials: Part 2 to send a check; this is a map-arrival milestone, not a separate mission-clear requirement.
Unforeseen Consequences: Part 1 Reached
DefaultReach Unforeseen Consequences: Part 1 to send a check; this is a map-arrival milestone, not a separate mission-clear requirement.
Unforeseen Consequences: Health Charger 1 (Part 1)
DefaultPress use on this health charger to send its check; it counts even when empty.
Unforeseen Consequences: Health Charger 2 (Part 1)
DefaultPress use on this health charger to send its check; it counts even when empty.
Unforeseen Consequences: Health Charger 3 (Part 1)
DefaultPress use on this health charger to send its check; it counts even when empty.
Unforeseen Consequences: Part 2 Reached
DefaultReach Unforeseen Consequences: Part 2 to send a check; this is a map-arrival milestone, not a separate mission-clear requirement.
Unforeseen Consequences: Health Charger 1 (Part 2)
DefaultPress use on this health charger to send its check; it counts even when empty.
Unforeseen Consequences: Health Charger 2 (Part 2)
DefaultPress use on this health charger to send its check; it counts even when empty.
Unforeseen Consequences: Health Charger 3 (Part 2)
DefaultPress use on this health charger to send its check; it counts even when empty.
Unforeseen Consequences: Health Charger 4 (Part 2)
DefaultPress use on this health charger to send its check; it counts even when empty.
Unforeseen Consequences: Health Charger 5 (Part 2)
DefaultPress use on this health charger to send its check; it counts even when empty.
Unforeseen Consequences: Health Charger 6 (Part 2)
DefaultPress use on this health charger to send its check; it counts even when empty.
Unforeseen Consequences: Health Charger 7 (Part 2)
DefaultPress use on this health charger to send its check; it counts even when empty.
Office Complex: Reached
DefaultReach Office Complex to send a check; this is a map-arrival milestone, not a separate mission-clear requirement.
Office Complex: Health Charger 1
DefaultPress use on this health charger to send its check; it counts even when empty.
Playing with others
Session format and multiplayer behavior follow the maintainer documentation linked on this page.
Known scope and limitations
- The evaluated download is v0.4, published October 1, 2026, with World 0.4.0 and Archipelago 0.6.7+. Its 35 code/data/doc files match source dba19104bb278; the release tag points to a different revision. The badges cover the hashed downloaded package and the matching source, not an assumed tag build.
- Designed for co-op lobbies: the host installs the plugin with Half-Life (Sven Co-op) Client /install, runs the AP client and opens a listen server on -sp_campaign_portal. Joining players use that host's integration. Selected campaign maps must exist on the host; the package does not distribute them.
- For Suspension, the current goal is the selected classes cleared at the capped tier, all eight by default. The optional medal check is tier-wide and separate from class clears; its description suggests a medal on every class run, which the completion predicate does not verify.
- Stay connected when completing missions and finales. Unlocks rebuild on reconnect, but pending checks/victory are not an acknowledged durable outbox. Restart the AP client when changing slots: its completed-mission set is not cleared by the slot-change handler.
- The first item-history batch restores unlocks without replaying one-shot filler/traps, including those received offline. Priority events, sequence tracking and restart recovery do not establish once-only delivery for all such effects. DeathLink is optional; lobby policy on/non_arcade/off governs local deaths, and incoming DeathLink affects the shared lobby.
- The matching source grants redistribution permission and the package contains scripts/data rather than game assets or binaries. Eleven supplied test files contain 317 test functions; these include World-specific prerequisite tests and generation profiles, bridge/data/install contracts and goal parsing. Suspension goal-class/medal combinations are not exhaustively covered. No target tests, build or game were executed.