ProgressGuard

ProgressGuard gates Valheim's post-boss ambient roamers according to the least-progressed currently connected character.

Progression is recorded only when ZenBossStone processes a boss-trophy sacrifice. Every player within ZenBossStone's configured range advances to that boss tier. The server persists and synchronizes those records; the required client plugin applies the gate on the client that owns the spawn zone.

Existing characters are automatically backfilled from their exact ZenBossStone guardian-power keys the next time they spawn. This recovers prior boss-stone activations without granting progression from world-wide boss keys.

The default server-wide safety ceiling means an early character protects the whole active server from later-tier ambient roamers. Known managed creatures already present outside their native biome are removed when above that ceiling. Raids, bosses, tamed creatures, and native-biome enemies remain untouched.

By default it gates:

• post-Yagluth Fulings outside the Plains;
• post-Queen Seekers, Seeker Broods, and Ticks outside the Mistlands;
• post-Fader Charred outside the Ashlands.

Recognized future boss-key ambient entries fail safe instead of silently bypassing protection.

Requires BepInEx, Jotunn, and ZenBossStone on the server and every client.

Changelog

0.1.1 - 2026-08-08

• Add an optional least-progressed-online ceiling for managed random raids.
• Stop an active managed raid if a newly connected character lowers the online ceiling below its required trophy tier.
• Block new event Monuments of Torment outside the Ashlands and remove loaded event monuments found there.
• Always allow the Monument-of-Torment raid and its monuments inside the Ashlands.
• Map Hildir's quest raids to conservative boss-progression tiers.
• Fix dedicated-server character identity resolution for legacy progression imports and online safety-tier calculation.
• Let each required client report its own in-range ZenBossStone sacrifice observation to the authoritative server registry.

0.1.0 - 2026-08-07

• Initial ProgressGuard implementation.
• Record per-character progression from in-range ZenBossStone trophy sacrifices.
• Automatically import existing per-character ZenBossStone guardian-power keys on spawn.
• Synchronize the authoritative world registry and gate configuration to required clients.
• Gate post-Yagluth, post-Queen, and post-Fader ambient roamers outside their native biomes.
• Make the least-progressed connected character the default server-wide ambient-spawn safety ceiling.
• Enable early-game boss-key roamer protection by default.
• Fail safe for new ambient entries that use recognized vanilla boss-unlock keys.
• Remove already-loaded managed creatures that exceed the online ceiling outside their native biome, while exempting raids, bosses, tamed creatures, and native-biome enemies.
• Preserve raids, native-biome spawns, dungeons, fixed spawners, and boss summons.
• Add world-scoped atomic persistence and remote administrator commands.
• Add pure behavior tests and installed-API compatibility checks.