Changelog

1.3.1 — Terrain height and Mountain transitions

This public update rolls up the completed terrain changes since 1.0.0. Private development iterations are not separate public releases.

• Reduced excessive ordinary inland elevation to limit unwanted snow/frost in Meadows, Black Forest and Plains.
• Adjusted native Mountain height inputs so continental uplift is not exaggerated in the same way, while retaining native terrain detail and waterways.
• Continued the inland height reduction through Mountain contributions, removing an artificial recovery of up to 16 metres across their transitions.
• Improved Mountain approaches without broadly flattening Plains, raising surrounding lowlands to match peaks, or replacing native Mistlands ruggedness.
• Retained the independent default digging and raising limits of 16 metres in each direction.
• Preserved existing saved recipes and configuration. Existing worlds retain their generation, including unexplored areas; create a new world for the revised terrain.
• Retained original snow/frost thresholds, native content routines and multiplayer recipe/version checks.

Compatibility and testing

• All multiplayer peers, including the host/dedicated server, must use 1.3.1. Further live multiplayer/dedicated-server verification of this update is pending.
• Positive user terrain checks and eight passing offline regression suites; the public release matches the accepted 1.3.1 test generation in the automated fixture.
• First generation of a new world can take longer than normal. If a rare generation crash occurs, restart Valheim and reload the world.
• Some steep faces, high-altitude frost outside Mountains and island underwater drop-offs may remain. No general crash fix is claimed.

1.0.0 — Initial public release

First public release of Valyn Earthlike Worlds — Procedural Map Generator for Valheim. This entry consolidates the completed development work into one public version.

World generation

• Seed-driven continental arrangements with substantial landmasses, broad ocean basins, and islands.
• Climate-informed biome placement using latitude, moisture, elevation, and progression-related distance gates.
• Protected starting terrain, native terrain detail, mountainous high ground, and lowland Swamp profiles.
• Native lake, river, stream, vegetation, resource, creature, and location-placement routines retained.
• Coordinate-consistent terrain height and material-profile handling across biome requests.

Terrain appearance and editing

• Gradual upland ground frost, increasing toward full snow at high elevations.
• Decorative green grass thinning beneath snowy Meadows and Black Forest vegetation, without changing those biome identities.
• New-world digging and raising defaults of 16 metres in each direction, relative to original generated ground.

World data and multiplayer

• Terrain recipes and edit limits saved per world; existing unmarked vanilla worlds remain native.
• Host recipe delivery before client terrain generation.
• Plugin-version and world-identity validation, with incompatible clients and retired world recipes rejected.
• Current-format private development worlds remain supported.

Diagnostics and implementation

• vt_status, vt_scan, vt_scan_stop, and vt_perf console diagnostics.
• Bounded terrain-field caching, world-context isolation, and diagnostic cleanup when worlds change.
• Focused current-format implementation with retired generators removed while retaining shared layout math.

Release notes

• Initial public testing release; live multiplayer and dedicated-server verification remain pending.
• The first generation of a new world can take longer than normal.
• Occasional crashes have been observed while terrain is generating; restart Valheim and reload the world to retry.
• Some islands have abrupt underwater drop-offs, and local biome transitions can need further refinement.

The mod is similar in purpose to Better Continents, with a focus on automatic, seed-based Earth-inspired worlds. Better Continents is not required and should not be enabled alongside it.