Bobby Legacy
by Argis
Bobby Legacy keeps chunks that a player has already loaded in a cache folder, so distant terrain can still be shown after it leaves the simulation distance.
What it does
The mod backports and ports Bobby to Minecraft 1.12.2. Loaded chunks are saved into a folder called minecraft/.bobby, and when the player moves beyond the simulation distance those cached chunks remain visible in place of real ones. Real chunks around the player still tick, so only the far terrain is drawn from the cache. This lets players see how far the world extends without the server loading every chunk.
Bobby Legacy depends on Cleanroom Relauncher and Fugue, which must be installed alongside it. Files are published for Forge only, for 1.12.2 alone, with V6 as the latest file dated 2026-10-13. The source code is public and the mod is open source under the GNU General Public License v3.0 only.
Key features
Chunk caching
Chunks the player has loaded are stored in a folder so they can be drawn again later.
Distant terrain view
Cached chunks appear beyond the simulation distance, showing how far the world extends.
Real chunks near the player
Chunks within reach stay live and keep ticking, while only the far area uses the cache.
Culling compatibility
The mod can run next to culling mods such as Nothirium and Entity Culling, which are listed as compatible.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
Use cases
Large survival worlds
Players exploring wide areas can keep distant terrain visible without loading every chunk in full.
Server-friendly distance views
Server owners can offer distant views while the chunks near each player remain live.
Who it’s for: Players on Forge 1.12.2 who want to see distant terrain, and server owners who want that view without loading all chunks. Installing it needs Cleanroom Relauncher and Fugue alongside the mod.
Questions
Does Bobby Legacy need Cleanroom Relauncher?
Which Minecraft versions does Bobby Legacy support?
Where are the cached chunks stored?
In the catalog
Bobby Legacy is one of 3,545 Optimization mods on ModsFinder, and one of 1,441 Optimization mods for Forge. 2,920 mods support Minecraft 1.12.2.
More from Argis
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What the author says
Bobby works by caching loaded chunks in a folder called /minecraft/.bobby. Real chunks sorround the player and cached chunks beyond the simulation distance are not tickable. This mod can be used on client and server. Incompatibilities: Nothirium, Particle Culling, Entity Culling, REID, Entity Distance and Dynamic…
Official listing
- Modrinth page
- modrinth.com/mod/bobby-legacy
- Owner
- Argis
- Published
- 2025-10-28
- Updated on Modrinth
- 2026-10-13
- Facts verified
- 2026-10-15