Snow & Rock Height Control

Too much snow on your map? Raise or remove the snow and rock height on imported heightmaps and on new random maps, temperate and subarctic.

Tested with game build 40420 (08 October 2026): works, no changes needed.

New in version 2 (14 October 2026)

• Heights up to 3100 m (the highest map height in the game is 3177 m).
• Subarctic maps get their own Snow and Rock sliders.
• If you used the first version, you don't need to change anything: your settings stay as they were. That is why Off appears twice on the Temperate sliders: after 2000 m (where it was before) and at the end.

Temperate snow and rock: Vanilla (330 m), 350 to 900 m in 50 m steps, 1000 to 3100 m in 100 m steps, or Off.

Subarctic snow: Vanilla (about 180 m), 200 to 900 m in 50 m steps, 1000 to 3100 m in 100 m steps, or Off.

Subarctic rock: Vanilla (about 120 m), 150 to 900 m in 50 m steps, 1000 to 3100 m in 100 m steps, or Off.

Scree moves together with the rock height. On subarctic maps, snow on flat ground only appears on Biome 4 (game rule).

Heights are in-game metres, the same values as Minimum and Maximum Height in the heightmap import.

Made for real-world heightmaps, and just as useful on random maps: hills and mountain ranges that would be covered in snow in vanilla keep their meadows, forests and biomes. Rock on very steep slopes still appears, because that rule depends on the slope, not only on height.

Notes: the mod changes the look of the terrain live. Keep it active in the map editor and in every game on maps made with it. Safe to remove: without the mod, maps simply return to the vanilla snow and rock look (tested). Only the temperate and subarctic climates are changed.

The mod writes a short report to stdout.txt.

Thanks to EMP-TPF2 for the idea.

By BeOnHedge & Brainy.