If you want a genuinely hard Minecraft experience in 2026, these three modpacks come up constantly. They are not the same kind of difficult, though, and picking the right one depends on what you actually enjoy.
RLCraft: survival-first, punishing by design
RLCraft is built on Minecraft 1.12.2 and focuses on making basic survival harder: temperature, hunger, health and mob difficulty are all tuned to punish careless play. It does ship a quest book, but most of the challenge is simply staying alive. Pick it if your group wants raw survival difficulty more than a guided story.
The pack runs on Forge 14.23.5.2860 with Java 8, and the latest version, 2.9.3, came out in June 2023. By the packs' own figures it is the lightest of the three: it asks players to give the game 3 to 4 GB in their launcher. A server needs that plus memory for Java itself, so we start one on 5 GB and suggest 6 GB.
Prominence II: RPG progression with a story
Prominence II adds a structured RPG-style progression system with quests, custom bosses, and a clearer sense of direction than RLCraft. It's still difficult, but the challenge comes from a designed curve rather than raw chaos, which suits players who want clear goals and a quest book to follow.
It runs only on Fabric (Fabric Loader 0.19.3) for Minecraft 1.20.1 with Java 17, and version 4.1.2 came out on 1 October 2026. It needs more memory than RLCraft. The official server pack sets an 8 GB Java heap, and the pack team suggests at least 8 GB for 3 to 4 players plus 1 GB for every extra player.
Vault Hunters: dungeon-crawling with roguelike loops
Vault Hunters centers on repeatable "vault" dungeons with randomized loot and increasing difficulty, closer to a roguelike loop than open survival. It's the most structured of the three, built around repeated runs rather than a single continuous world, so it fits players who like loot-focused, session-based play.
The pack runs on Forge 40.3.11 for Minecraft 1.18.2 with Java 17. It still gets updates (3.21.7 came out in July 2026), but it has stayed on 1.18.2. Its memory needs are moderate to high: the pack asks players to set 8 GB (8192 MB) in the CurseForge app, its server files set no heap of their own, and 8 to 12 GB covers most multiplayer groups.
Which one should you host?
If your group wants classic, unforgiving survival with no hand-holding, RLCraft is still the reference point in 2026. If they want structure, quests, and a sense of progress, Prominence II fits better. If they want short, replayable dungeon runs with friends, Vault Hunters is the closer match.
All three run on Space-Node's Minecraft plans. For RLCraft we suggest MC Lapis (6 GB); our RLCraft server hosting page sizes every plan from the pack's own RAM advice. Vault Hunters fits MC Diamond (8 GB) or MC Special 1 (12 GB). Our Vault Hunters server hosting page sizes the plans from the 8GB the pack asks players to give the game. For Prominence II we suggest MC Special 1 (12 GB), so the shipped 8 GB heap has room next to Java itself; our Prominence 2 server hosting page sizes the plans by the pack team's own rule. On the 8 GB MC Diamond the heap would have to come down first, and the pack team gives no figure for a smaller one.
For a deep dive on RLCraft specifically, see our RLCraft server setup guide. For Prominence II, our Prominence II server guide covers the server pack, RAM and party setup.