How Much RAM Does a Parasites 100 Days Server Need?
Parasites 100 Days is OkRobert's post-nuclear hardcore survival pack on Forge 1.12.2 — parasitic creatures overrun the world, and the mob AI behind those swarms is heavier on RAM than a standard 1.12.2 survival pack. See the Parasites 100 Days pack page for the full mod list, and use the tiers below to pick a RAM size that matches your group. 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.
3 GB
Below the pack's own recommended floor. It may boot for a quick solo test, but Forge 1.12.2 plus the parasite mob AI in this pack tends to show tick lag and crashes once the infestation ramps up — not a tier to actually play on.
5 GB
The best starting point for most Parasites 100 Days servers. This matches the pack's own recommended RAM floor and gives Forge 1.12.2 enough headroom to handle the parasite swarms without the tick rate falling apart.
8 GB
A safer tier for a mid-size active group — a few players exploring and building defenses at once, running the world for longer stretches without restarting.
12 GB
Worth it for 10+ players or a long-running world. At this size the server can carry a bigger explored map and more concurrent base-building without the parasite swarms dragging down performance.
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 →