PanludiaBlack Mesa Inbound: Part 1 Reached
Reach the named map division in its campaign to send this check.
COMMUNITY INTEGRATION
Half-Life (Sven Backport)Archipelago randomizer mod
Turn retail Half-Life into a mission-based multiworld, with weapon unlocks, a hub, trackers and saved warp points. Release 0.3.1 adds optional owned Opposing Force and Blue Shift campaigns; each included finale must be completed.
Maintained by barretg, building on the hl1-sven-ap project
GAME MECHANICS
Explore game mechanics
Browse possible checks, rewards and settings. What appears in your game depends on your World options.
The release table defines 413 addressable checks across three campaigns. Default settings omit the opening tram ride and both expansions, leaving 245 Half-Life checks. The table has 122 Half-Life charger/healing entries; the Chargesanity prose reports a different total, so this page follows the itemized table.
Actions and milestones that can send a check to your multiworld.
413 locationsDefault marks checks from configurations selected by standard options; the generated set can still vary with logic and seed.
Black Mesa Inbound: Part 2 Reached
Reach the named map division in its campaign to send this check.
Black Mesa Inbound: Part 3 Reached
Reach the named map division in its campaign to send this check.
Black Mesa Inbound: Part 4 Reached
Reach the named map division in its campaign to send this check.
Black Mesa Inbound: Part 5 Reached
Reach the named map division in its campaign to send this check.
Black Mesa Inbound: Part 6 Reached
Reach the named map division in its campaign to send this check.
Anomalous Materials: Part 1 Reached
DefaultReach the named map division in its campaign to send this check.
Anomalous Materials: Health Charger 1 (Part 1)
DefaultUse a listed health or armour charger, or enter a marked healing pool. Chargesanity controls this group.
Anomalous Materials: Health Charger 2 (Part 1)
DefaultUse a listed health or armour charger, or enter a marked healing pool. Chargesanity controls this group.
Anomalous Materials: Part 2 Reached
DefaultReach the named map division in its campaign to send this check.
Anomalous Materials: Health Charger (Part 2)
DefaultUse a listed health or armour charger, or enter a marked healing pool. Chargesanity controls this group.
Anomalous Materials: Part 3 Reached
DefaultReach the named map division in its campaign to send this check.
Anomalous Materials: Part 4 Reached
DefaultReach the named map division in its campaign to send this check.
Anomalous Materials: Part 5 Reached
DefaultReach the named map division in its campaign to send this check.
Unforeseen Consequences: Part 1 Reached
DefaultReach the named map division in its campaign to send this check.
Unforeseen Consequences: Part 2 Reached
DefaultReach the named map division in its campaign to send this check.
Unforeseen Consequences: Part 3 Reached
DefaultReach the named map division in its campaign to send this check.
Unforeseen Consequences: Health Charger (Part 3)
DefaultUse a listed health or armour charger, or enter a marked healing pool. Chargesanity controls this group.
Unforeseen Consequences: Part 4 Reached
DefaultReach the named map division in its campaign to send this check.
Unforeseen Consequences: Health Charger 1 (Part 4)
DefaultUse a listed health or armour charger, or enter a marked healing pool. Chargesanity controls this group.
Playing with others
Session format and multiplayer behavior follow the maintainer documentation linked on this page.
Known scope and limitations
- Evaluated release v0.3.1, published October 2, 2026, contains World 0.3.0 and requires Archipelago 0.6.7+. Select Half-Life in YAMLs and the Launcher; the upstream now calls this retail variant Half-Life Trilogy.
- Requires the current Steam anniversary Half-Life on Windows, not steam_legacy, WON or Xash. Optional Opposing Force and Blue Shift must be installed in the same Steam library. Use Half-Life Client /install, connect it to the room, then launch with -game hlap. The installer mounts expansion files locally from those installed games.
- Back up hlap/SAVE before uninstalling. Warp points are local and derived from seed/slot; they are swept on goal or uninstall. Progression unlocks rebuild from server history, but pending checks and victory lack a durable acknowledged retry path. Stay connected when completing a mission or finale.
- The initial history batch restores unlocks without replaying filler or traps, including one-shot rewards received while offline. One-shot delivery is not fully protected across priority messages and process restarts. The old experimental ammo_relief option is now inert.
- The native DLLs are SDK-based and the package does not include a complete licence/notice inventory. Valve permits free SDK-based distribution subject to licence conditions; this review records missing companion evidence without determining infringement. Original game/expansion assets are read from the local install; no full game or DLC archive was identified.
- Source/package correspondence covers 46 readable/resource files; native DLL inspection covers PE metadata, imports and AP markers. Fourteen supplied test files contain 293 test functions, including World-specific prerequisite and generation-profile assertions, client slot-data parsing, bridge and installation contracts. No target tests, build or game were executed, and full binary correspondence was not established.