CurseForge · Minecraft mod
OneBlock: Apex
A data-driven OneBlock evolution! Break blocks, earn Island Points to unlock custom drop toggles, prestige for permanent perks, and track progress via the OB Manager GUI. Fully customizable for modpacks!
Quick answer
Which OneBlock: Apex release should I use?
OneBlock: Apex ob-apex-fabric-1.0.16.jar targets 1.21.1 with Fabric. The project page does not say whether this file belongs on the client, dedicated server, or both. All 1 required mods have matching files.
Where it goes
Is OneBlock: Apex required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does OneBlock: Apex ob-apex-fabric-1.0.16.jar need?
ob-apex-fabric-1.0.16.jar. Change the file and its required mods may change too.
Install ArrowLib first. We found matching files for this game-version and loader setup. 3 come through another mod in the chain.
3 extra mods were pulled in by other dependencies. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add OneBlock: Apex without breaking your instance.
Built for OneBlock: Apex ob-apex-fabric-1.0.16.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use ob-apex-fabric-1.0.16.jar. It targets 1.21.1 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install ArrowLib first. We found matching files for this game-version and loader setup. 3 come through another mod in the chain.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside ob-apex-fabric-1.0.16.jar. It opens that exact file at the source.
About this project
What does OneBlock: Apex add?
OneBlock: Apex
OneBlock: Apex takes the classic skyblock concept and evolves it into a fully data-driven, highly customizable incremental progression system. Break your block, progress through distinct stages, earn Island Points, and unlock permanent prestige mechanics to build the ultimate floating paradise!
Key Features
- Data-Driven Stage Progression: Journey through fully customizable stages. Track your current block count and milestones directly on screen with a custom hex-colored HUD overlay.
- The OB Manager: A built-in GUI to monitor stage progress, claim queued milestone rewards, and configure island upgrades.
- Upgradable OneBlock & Discovery: Every block or event that spawns is cataloged into your learned results. Spend Island Points earned from completing stages to toggle specific blocks into your spawn pool and scale their spawn weights!
- Prestige System: Reach the end of the final stage to prestige your island—resetting stage progress in exchange for permanent perks, boosted point multipliers, and unique endgame drops.
- Modular Outcome Engine: Fully customizable via JSON data packs. Easily configure blocks, NBT, mob spawns, command execution, and custom costs.
- JEI Integration: View stage details, milestone rewards, and drop chance percentages directly inside Just Enough Items.
- Vanilla Stealth Mode: Don't want clutter on your screen? Toggle off HUD overlays, glowing outlines, and toasts anytime in the client settings menu for a clean, traditional Minecraft feel.
Modpacks & Customization
Designed from the ground up for modpack creators! Every stage, result, reward, and cost can be tweaked or expanded using standard data packs. Feel free to include OneBlock: Apex in any CurseForge modpack!
Project description from CurseForge.
Pick your setup
OneBlock: Apex by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
OneBlock: Apex versions and loaders
ob-apex-fabric-1.0.16.jar
17 Aug 2026
ob-apex-fabric-1.0.9.jar
13 Aug 2026
Looking for an older file? The official CurseForge project page is in Resources.