Roguelike Adventures and Dungeons 2 Server Hosting

No, and this catches people out regularly. The 1.17 is the modpack's own version number. Roguelike Adventures and Dungeons 2 runs on Minecraft 1.16.5, so your players need that Minecraft version with the pack installed. Anyone who sets up a 1.17 profile will simply fail to connect. Always install the pack through a launcher rather than picking a Minecraft version by hand.

8 GB for a group of around six. Unlike an automation pack, most of that goes on the world rather than on machines: over 100 biomes and more than a dozen dimensions mean a lot of generation logic and a lot of terrain being held. Exploration packs also keep players spread out, which loads more of the map at once than a shared base does.

Yes, more than on almost any other pack we list. With this many biome and structure mods, every new chunk is expensive, and an exploration pack guarantees players keep generating them. Add Chunk Pregenerator to the server, cover a sensible overworld radius before anyone joins, and let it finish offline. You cannot practically pregenerate all the dimensions, so accept a cost when each is first opened.

Because that dimension is being created at that moment. RAD2 has more than a dozen of them, and each is a fresh world with its own generation rules that only exists once somebody steps through. It is a one-off cost per dimension rather than something that keeps happening. If it is disruptive, have someone open new dimensions at a quiet time rather than mid-session.

You can, but 1.16.5 Forge is a smaller ecosystem than 1.20 and the pack is already heavily tuned, with scaling mobs and levelled equipment that other mods can interfere with. Stick to utility additions, back up before you try, and give every player the identical jars. Anything that adds more biomes or dimensions is the riskiest category on a pack already full of both.

Normally yes, and the panel keeps the world and can back it up during the update. The thing worth protecting here is character progress: levelled skills, levelled tools, trinkets and relics represent a lot of play time and are more painful to lose than a base. Take the backup, read the changelog, and have everyone update on the same day.