# Super Mario 64 Coop Deluxe

**Super Mario 64 Coop Deluxe** (also known as sm64coopdx) is a 2023 online multiplayer project for the Super Mario 64 PC port, developed by the Coop Deluxe Team for PC, in which multiple players share a single synchronized game world<sup>[1](https://dpad.fm/wiki/index.php?title=Super_Mario_64_Coop_Deluxe)</sup><sup> • </sup><sup>[2](https://github.com/coop-deluxe/sm64coopdx/blob/main/README.md)</sup>. Unlike earlier [Super Mario 64](https://www.edgepedia.org/super-mario-64) multiplayer projects, it synchronizes all entities and every level, so players interact with the same world at the same time rather than playing loosely connected copies of the game<sup>[2](https://github.com/coop-deluxe/sm64coopdx/blob/main/README.md)</sup>.

| Key fact | Detail |
|---|---|
| What it is | An online multiplayer project for the Super Mario 64 PC port that synchronizes all entities and every level for multiple players<sup>[2](https://github.com/coop-deluxe/sm64coopdx/blob/main/README.md)</sup> |
| Developer | Coop Deluxe Team; first release year 2023<sup>[1](https://dpad.fm/wiki/index.php?title=Super_Mario_64_Coop_Deluxe)</sup><sup> • </sup><sup>[3](https://www.pcgamingwiki.com/wiki/Company%3ANintendo_EAD)</sup> |
| Lineage | Actively maintains and continues sm64ex-coop, created by djoslin0<sup>[2](https://github.com/coop-deluxe/sm64coopdx/blob/main/README.md)</sup> |
| Modding | Moddable via a Lua API, described as similar to the Lua APIs of Roblox and Garry's Mod<sup>[2](https://github.com/coop-deluxe/sm64coopdx/blob/main/README.md)</sup> |
| Built-in mods | Ships with mods that serve as features and API examples, such as the Day-Night Cycle and various gamemodes<sup>[4](https://deepwiki.com/coop-deluxe/sm64coopdx/6-mod-system)</sup> |
| Latest release | v1.5.1, released May 31st, 2026, with 28 commits<sup>[5](https://github.com/coop-deluxe/sm64coopdx/releases)</sup> |

## Purpose and multiplayer design

The project's stated initial goal was to create a mod for the PC port where multiple people can play together online, a goal the team marks as accomplished<sup>[2](https://github.com/coop-deluxe/sm64coopdx/blob/main/README.md)</sup>. The distinguishing feature is synchronization: enemies and events are shared across clients, allowing players to interact with the same world at the same time<sup>[2](https://github.com/coop-deluxe/sm64coopdx/blob/main/README.md)</sup>. The team describes the project's purpose as having evolved from simply making a Super Mario 64 multiplayer mod into constantly maintaining and improving the project, notably the Lua API<sup>[2](https://github.com/coop-deluxe/sm64coopdx/blob/main/README.md)</sup>.

The underlying game is the Super Mario 64 PC port, itself made possible by a fan decompilation completed in 2019 that produced a C source able to rebuild a matching ROM; the decompilation does not include the game's assets, so building requires a copy of the original game<sup>[6](https://www.tomshardware.com/video-games/retro-gaming/programmer-ports-super-mario-64-to-microsofts-zune-hd-media-player-the-2009-ipod-rival-runs-the-game-natively-on-its-nvidia-tegra-chip-with-touchscreen-controls-and-saves)</sup>.

## Modding and Lua API

sm64coopdx is moddable via Lua, and the README compares its Lua API to those of Roblox and [Garry's Mod](https://www.edgepedia.org/garrys-mod)<sup>[2](https://github.com/coop-deluxe/sm64coopdx/blob/main/README.md)</sup>. The mod system maintains three primary collections of mods to handle local availability, server requirements, and active gameplay state<sup>[4](https://deepwiki.com/coop-deluxe/sm64coopdx/6-mod-system)</sup>. The game ships with several built-in mods that serve both as features and as API examples, including the Day-Night Cycle and various gamemodes<sup>[4](https://deepwiki.com/coop-deluxe/sm64coopdx/6-mod-system)</sup>.

Community mods are a large part of the ecosystem. Release notes also document an expanding Lua surface: v1.5 exposed functions such as `get_time_stop_flags()`, `set_sound_bank_override()`, and `get_mod_files`, and raised the maximum DJUI HUD renders per frame to 10,000<sup>[5](https://github.com/coop-deluxe/sm64coopdx/releases)</sup>.

## Releases and platform support

Releases are published on GitHub under version numbers titled "Super Mario 64 Coop Deluxe", from v1.1.1 through v1.5.1<sup>[5](https://github.com/coop-deluxe/sm64coopdx/releases)</sup>. The v1.5 update, released May 27th, 2026 with 178 commits, added an automatic updater that prompts for and installs updates, unified the Windows OpenGL and DirectX builds into one with a renderer option in the display panel, added PS4/PS5 rumble support, an infinite draw distance option, and an optimization of the lighting engine for up to a 10x performance increase<sup>[5](https://github.com/coop-deluxe/sm64coopdx/releases)</sup>.

The v1.5.1 patch, released May 31st, 2026, fixed crashes related to DynOS packs using Lua functions, a Yoshi crash, several object-syncing issues, and Japanese custom HUD font rendering, and completed 100 percent documentation of the Lua API functions<sup>[5](https://github.com/coop-deluxe/sm64coopdx/releases)</sup>. It also carries a platform note: v1.5.1 is the last version with a dedicated SteamOS build, which the team describes as essentially the Linux build with a couple of default config options changed; from v1.6, users are directed to the Linux version<sup>[5](https://github.com/coop-deluxe/sm64coopdx/releases)</sup>.

## Context: multiplayer in Super Mario 64

Multiplayer Super Mario 64 has a long history of fan effort. According to Nintendo Life, Shigeru Miyamoto experimented with multiplayer when [Mario](https://www.edgepedia.org/mario) made the 3D transition in Super Mario 64, but it was never implemented in the final release<sup>[7](https://www.nintendolife.com/news/2021/01/feature_super_mario_and_friends_-_a_history_of_mainline_mario_multiplayer)</sup>.

## References

1. [Super Mario 64 Coop Deluxe - WikiPadia, The Official D-Pad Wiki](https://dpad.fm/wiki/index.php?title=Super_Mario_64_Coop_Deluxe)
2. [sm64coopdx README, coop-deluxe/sm64coopdx, GitHub](https://github.com/coop-deluxe/sm64coopdx/blob/main/README.md)
3. [Nintendo EAD, PCGamingWiki](https://www.pcgamingwiki.com/wiki/Company%3ANintendo_EAD)
4. [Mod System, coop-deluxe/sm64coopdx, DeepWiki](https://deepwiki.com/coop-deluxe/sm64coopdx/6-mod-system)
5. [Releases, coop-deluxe/sm64coopdx, GitHub](https://github.com/coop-deluxe/sm64coopdx/releases)
6. [Programmer ports Super Mario 64 to Microsoft's Zune HD media player, Tom's Hardware](https://www.tomshardware.com/video-games/retro-gaming/programmer-ports-super-mario-64-to-microsofts-zune-hd-media-player-the-2009-ipod-rival-runs-the-game-natively-on-its-nvidia-tegra-chip-with-touchscreen-controls-and-saves)
7. [Super Mario And Friends - A History Of Mainline Mario Multiplayer, Nintendo Life](https://www.nintendolife.com/news/2021/01/feature_super_mario_and_friends_-_a_history_of_mainline_mario_multiplayer)

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*Topic: Encyclopedia › Sports, games, and recreation › Video games and digital play › Games and gameplay › Individual game titles › Individual PC and computer-platform game titles › Platformer and puzzle titles*

*Initially written Sep 17, 2026 · Reviewed: Oct 21, 2026 · Edited: Oct 15, 2026; Oct 21, 2026 · Last review: Oct 21, 2026*

*Copyright 2026 EdgeChat AI, a subsidiary of Biostate AI.*

License: Edgepedia Community License 1.0, https://www.edgepedia.org/edgepedia/license