RealisticCraft Server Hosting

Plan on 5 GB. The pack has 47 Fabric mods, which counts as light, and the estimate for six players comes to roughly 4.1 GB before rounding up. The extra margin matters because the realism mods add work per entity and per tick. Raise it only if spark shows memory pressure, not just a slow tick.

Around six is the sweet spot. The pack is built for slow, careful survival, so a small group sharing one base gets the most from it. More people means more chunks generating in different directions at once, which is where the server spends its effort. Pregenerate a wider area first if your group is bigger than that.

Back up first, every time. The pack is on an alpha line, 1.2.0-alpha2, and alpha builds can add or drop mods between releases. Install the new build from the Modpacks tab, start it once and watch the console for missing registry warnings. If an item or block mod disappeared, restore the backup and stay on the earlier build.

Yes, but keep to Fabric mods built for 1.21.11 and remember players need the same mod set on their side for anything that adds content. Server-only tools like Chunky or spark are safe to drop in. Removing one of the realism mods mid-world can leave its blocks or entities orphaned, so test the change on a copy of the world first.

It is the opposite approach. Kitchen-sink packs such as All the Mods pile on hundreds of mods, tech lines and dimensions and need far more memory. RealisticCraft keeps to 47 Fabric mods and spends them on making the vanilla world harsher and more believable. Expect less to build and more to survive, on a much lighter server.

That is the design. The pack sits in the adventure and challenging categories, and its mods change how the world behaves when you are unprepared. Vanilla habits like sprinting through the dark or skipping shelter stop paying off. Groups do best when they agree on a base site early and spread out only once it is secure.