OneBlock Plugin (1.21.7, 1.20.1) – Infinite Skyblock Challenge for Servers

The OneBlock Plugin transforms the classic Minecraft survival gameplay into an innovative, high-stakes challenge where players begin on a single floating block in the void. Designed especially for multiplayer servers running Bukkit, Spigot, or Paper, this plugin brings the popular OneBlock game mode to life with extensive customization, progressive expansion, and full server-side control.

Upon joining, players spawn on one block and must mine it repeatedly to expand their world, gradually unlocking new resources, biomes, and structures. Whether you’re hosting a small survival server or a large public hub, OneBlock offers a customizable and endlessly replayable survival experience that evolves as players level up.

Features:

• Single Block Survival Start:
  Players begin their journey on a solitary block suspended in the void. Breaking this block spawns a new one, creating an endless cycle of resource generation and survival.
• Progressive Gameplay:
  With each block broken, players unlock new phases of materials, biomes, mobs, and challenges. The world evolves around them, transforming from a single block into a dynamic survival landscape.
• Multiplayer Island Generation:
  Supports multiplayer functionality with commands to create individual islands, manage invitations, or build in circular layouts for a cooperative or competitive experience.
• Fully Customizable Settings:
  Server owners can tweak starting items, island spacing, physics behavior, block regeneration rules, and more. You have full control over how survival unfolds.
• Advanced World Protection:
  Options like per-player world borders, island protection, and abandoned island overwrite ensure player fairness and server integrity.

Commands List:

• /ob set – Set the central starting block. Run once by admin.
• /ob set 500 – Define 500-block spacing between islands.
• /ob circlemode true – Arrange player islands in a circular pattern.
• /ob join – Join a new island automatically.
• /ob autojoin true – Players join OneBlock mode automatically upon connection.
• /ob protection true – Prevents players from leaving their islands.
• /ob border true – Enables personal borders around each island.
• /ob droptossup true – Drops appear floating above the block.
• /ob physics false – Disable physics like sand or gravel falling.
• /ob invite [playername] – Invite another player to your island.
• /ob kick [playername] – Remove an invited player from your island.
• /ob accept – Accept an island invitation.
• /ob IDreset – Resets player data to allow a fresh island start.
• /ob lvl_mult 5 – Adjusts difficulty scaling:
  Blocks to next level = 16 + (current level × multiplier)
• /ob UseEmptyIslands true – Reuses abandoned islands instead of generating new ones.

Screenshots:

Installation Note:

To install the OneBlock Plugin on your Minecraft Java server:

1. Download the plugin .jar file.
2. Place it into your server’s /plugins/ directory.
3. Start the server and let it load the plugin.
4. Stop the server via console (stop) to finish setup.
5. Start your server again the plugin will now be active.

Why use OneBlock Plugin?

The OneBlock Plugin isn’t just a gimmick it’s a powerful tool for server admins who want to offer a focused survival experience with strong replay value and low server resource demands. Unlike typical Skyblock setups, OneBlock’s dynamic expansion and leveling formula give players a sense of progression and excitement with every broken block. The built-in command system also gives admins and players the freedom to create, invite, and manage their own islands seamlessly, making it ideal for long-term survival communities or competitive events.

If you’re looking for a simple yet endlessly deep gameplay loop that scales perfectly for solo or server-wide experiences, OneBlock is the go-to choice.