Kingdoms and Colonies Rebirth2026-10-25 · 5 min read

How Much RAM Does a Kingdoms and Colonies Rebirth Server Need?

Kingdoms and Colonies Rebirth runs on Forge 1.20.1 and leans on MineColonies for colony building plus a diplomacy system that generates rival kingdoms across the map — see the Kingdoms and Colonies Rebirth pack page for the full feature list. Unlike conquest-focused kingdom packs, it's built around balanced development with no single winning strategy, and RAM needs scale mostly with how many colonies and rival kingdoms end up active at once. Finnish players: Minecraft-palvelin hosting is our native-language page. German players: Minecraft-Server mieten covers the same hosting auf Deutsch. Svenska spelare: Hyra Minecraft-server täcker samma hosting på svenska.

4 GB

The bare minimum for a solo save or quick test — expect colonist pathfinding and rival-kingdom generation to stutter as more kingdoms spawn in.

7 GB

The recommended starting point for Kingdoms and Colonies Rebirth — matches the pack's own recommended floor and gives MineColonies and the diplomacy system room to run without stutter for a small group.

10 GB

Safer for a mid-size active group running multiple colonies at once, with several rival kingdoms active on the map simultaneously.

14 GB

For 10+ players or a long-running world with many established colonies, extensive claimed territory, and a full roster of rival kingdoms.

Want a faster estimate?

Use CoalHost's RAM calculator, then start from the plan that matches your player count and expected world activity.

Open RAM Calculator →