Local Multi Player

local-multiplayer

Play Minecraft Java Edition together on one computer, in one game process and one window. local-multiplayer provides local split-screen for 2–4 real players in the same integrated-server world, with separate characters, views, inventories and personal menus.

Features

• Two players: side-by-side or top-and-bottom. Three players: one large view on the left and two on the right. Four players: a 2×2 grid.
• Independent cameras, first-person hands, crosshairs, basic health/hunger/hotbar/experience HUD and player names.
• Personal inventories, vanilla item interfaces, respawn and wake-up panels in each player's viewport.
• Persistent local identities and selectable vanilla default skins.
• Configure identities, skins, controller assignments and layouts from the title screen or pause menu.

Requirements

Verified setup: Minecraft Java Edition 26.3, NeoForge 26.3.0.77 and Java 25. The mod declares Minecraft and NeoForge version ranges of [26,27); compatibility with other 26.x combinations is unverified.

For controller play, install the matching NeoForge builds of Controllable (verified: 0.26.2) and its dependency Framework (verified: 0.13.27). These mods are not bundled.

Player 1 uses keyboard/mouse or keyboard/mouse plus a controller. Each additional player needs an exclusively assigned controller. Multiple physical keyboard/mouse sets are not supported.

Getting started

1. Install the verified Minecraft/NeoForge setup and Java 25.
2. Put local-multiplayer-1.0.0.jar, Controllable and Framework in the instance's mods folder. Remove older Local Split / localsplit builds to avoid duplicates.
3. Connect controllers, open the configuration button beside Local Multiplayer on the title screen, assign devices and identities, enable player 3/4 as needed, then save.
4. Choose Local Multiplayer and open a local world. Identity and skin changes take effect the next time you enter a world.

Controls follow your current Controllable bindings. Player 1 can use the normal keyboard bindings. In a local session, opening a personal inventory allows other players to keep playing.

Current limitations

This version is an experimental local integrated-server implementation. Guest views currently share the host's client world data. Independent distant world state, full cross-dimension play, complete item-use and HUD synchronization, third-party menus/rendering mods and shaders remain unverified or incomplete. Public servers and Realms are outside the verified scope. Simultaneous play with multiple physical controllers and a complete multiplayer gameplay acceptance pass are still pending. Gallery images demonstrate actual layouts; they do not certify those pending tests.

No new blocks, items or dimensions are added. Back up your worlds and config/localsplit-client.properties before changing installations; the configuration contains your persistent local identities. Do not distribute personal configs or saves with the mod.