How much RAM does a Lucky Block Challenge server need?

Start with 5 GB. The pack only carries 28 mods, so the baseline is low, but a Lucky Block that spawns a horde or a structure creates sudden entity spikes. If several players open blocks at once and the server stutters, raise RAM one step and use spark to confirm entities are the cause.

How many players suit this pack?

It plays best with a small group of around six. Races and pillar fights need a few rivals to be fun, and every extra player adds more simultaneous block breaks and mob spawns. Larger groups work if you give the server more memory and keep rounds inside the arena.

How do I update to a newer build safely?

Stop the server and take a backup first, since your arenas and OneBlock progress sit in the world folder. Then pick the new build in the Modpacks tab. Every player must update their client to the same version, or NeoForge refuses the connection because the mod lists no longer match.

Can I add or remove mods?

Yes, over SFTP in the mods folder, but keep the server and clients in sync. Removing a mod that a Lucky Block outcome relies on can break some drops, so test changes on a copy of the world first. Performance and utility mods built for NeoForge 1.21.1 are usually safe to add.

How is it different from a regular OneBlock modpack?

A regular OneBlock pack is a long survival climb from one block to a full base. Lucky Block Challenge treats OneBlock as just one mode, and every block is a Lucky Block, so the run swings between windfalls and disasters. It also adds races and pillar battles, which makes it better for short competitive sessions.

Can a Lucky Block destroy our base?

It can. Some outcomes place structures, start fires or release explosive mobs, and that is part of the fun. Open blocks away from anything you care about, keep regular backups from the panel, and treat your main build area as a no-breaking zone if the group wants a safe spot between rounds.

Minecraft modpack · Modrinth

Lucky Block Challenge Server Hosting

by Kesselot

NeoForgeMinecraft 1.21.1Java 21

How install works

One-click install from the Modpacks tab once your server is ready

Recommended RAM: 5 GB
Latest build: v2.1.0Oct 2026
Mod loader: NeoForge1.21.1
Downloads: 343KModrinth

Lucky Block Challenge is a NeoForge 1.21.1 modpack by Kesselot that turns the old Lucky Block idea into a whole set of games. Every yellow block you break is a gamble: it might hand you enchanted gear, open a pit under your feet, drop a structure on your head or release a crowd of hostile mobs. The pack bundles 28 mods, so it stays light while carrying several ways to play.

The hook is variety. Lucky OneBlock strands you on a single block that keeps coming back, Lucky Race sends everyone sprinting down a lane of blocks to see who gets lucky first, and Lucky Pillars puts each player on a column where random items appear before the fighting starts. Lucky Games and the other modes keep rounds short, loud and unpredictable.

It suits friend groups who would rather spend an evening laughing at bad luck than grinding a long tech tree, streamers who need a fresh twist for every session, and anyone who enjoys PvP where gear depends on the dice. Rounds reset quickly, so newcomers can jump in without learning a progression tree.

Hosting Lucky Block Challenge

RAM and what drives load

We recommend 5 GB for this pack. The 28 mods themselves cost very little; the real load comes from whatever a Lucky Block decides to do. One break can spawn a pack of mobs, a falling structure or a shower of dropped items, and when the whole group breaks blocks in the same second those spikes stack. If a round stutters, add spark and run /spark profiler start, then /spark profiler stop after the lag, to see whether entities or block updates are to blame.

World pregeneration and chunk loading

Many Lucky Block Challenge rounds happen in a compact arena, a race lane or on a single OneBlock, so chunk generation is rarely the bottleneck mid-game. It matters when players leave the arena to explore with their winnings, because NeoForge then generates fresh terrain on demand. If your group plays that way, add Chunky and pregenerate a moderate radius before the session, for example /chunky radius 2000 followed by /chunky start, so lucky structures land in finished chunks instead of new ones.

Java version and updating

Minecraft 1.21.1 on NeoForge needs Java 21, and our servers run the right runtime for this build. Kesselot updates the pack often, and build 2.1.0 is the latest at the time of writing. Take a backup before switching builds, because arenas and OneBlock progress live in the world folder. Change the build from the Modpacks tab rather than swapping jars by hand, so the mod list stays matched to what players download in their launcher.

Chaos

Every block is a gamble

Breaking a Lucky Block can reward you with gear or punish you with traps, mobs and falling structures.

Modes

Races, pillars and OneBlock

Several minigame modes ship in one pack, so a group can switch games without reinstalling.

Light

28 mods on NeoForge 1.21.1

A short mod list keeps the pack quick to install and easy on server memory.

How to install Lucky Block Challenge on your server

1
Order the server
The button on this page preselects the RAM this pack needs. It is online about a minute after checkout.
2
Open the Modpacks tab and search Lucky Block Challenge
Open the Modpacks tab in the panel, search for Lucky Block Challenge, pick the listing by Kesselot and install build 2.1.0.
3
Press install and wait
The panel downloads the server pack, installs the loader and the right Java version, then restarts.
4
Join with the same build
Everyone installs the same pack build in their launcher, then connects to the address on the Overview tab.

Available builds

Build	Minecraft	Loader	Released	Installable
v2.1.0	1.21.1	NeoForge	Oct 2, 2026	Installable
v2.0.9	1.21.1	NeoForge	Sep 11, 2026	Installable
v2.0.8	1.21.1	NeoForge	Aug 11, 2026	Installable
v2.0.7	1.21.1	NeoForge	Jul 4, 2026	Installable
v2.0.6	1.21.1	NeoForge	Jun 5, 2026	Installable