We Love It's Guide to…
Fight through a conspiracy as Madness antiheroes, mixing third-person gunplay and brawling with a customizable arena campaign.
Released 29 Sep 2021
Shoot and Brawl
Build an Arena Warrior
Survive Enemy Waves
MADNESS: Project Nexus is a third-person Run n' Gun / Beat'Em Up filled with arcade-style action and button-mashing brutality. Gun your way through droves of bad guys in the Story Campaign, or build your perfect killing machine in the neverending onslaught of Arena Mode.
Developed by GIBBING TREE, LLC · Published by GIBBING TREE, LLC









In the Story Campaign, take control of antiheroes from the Madness universe as they infiltrate hostile locations, battle escalating forces, and investigate Project Nexus. Missions can be played solo or in local co-op with up to four players.
Combat combines third-person shooting with close-quarters attacks. Pick up and switch weapons, throw them, use melee combos, and take cover while facing varied enemies and bosses. Some missions also let you direct or switch between teammates.
Arena Combat is a solo progression mode where you create a warrior, choose an origin, develop skills, and equip weapons and armor while taking on missions and waves of enemies. The Playground provides a separate combat sandbox for setting squads against each other or joining the fight yourself.
Players often praise the forceful, satisfying combat and the Arena mode's character building and replay value. Reviews also highlight the soundtrack, weapon variety, and connection to the Madness universe. Some players find teammate AI unreliable, the mechanics underexplained, or the lack of online co-op limiting.




| Platforms | Windows |
|---|---|
| Steam Deck | Playable |
| Achievements | 52 |
| Age ratings |
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| Players | 1–4 |
| Play modes |
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| Other modes |
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| Multiplayer | The game supports co-op in the Story Campaign only. Official support is local co-op for up to 4 players total, including solo play and up to 3 additional local players, with shared/split screen and controller support. Arena Combat is described as solo play. There is no confirmed native online co-op or online PvP in the provided information, though Steam Remote Play Together is supported and reviews describe it as a workaround for remote play. |
| Multiplayer & mods | No official multiplayer expansion via mods is stated. One review says the main story is the only officially supported co-op mode and mentions workarounds for multiplayer in Arena Mode. Workshop/mod support is mentioned, but no verified official mod-based multiplayer feature is described. |
| Controller required | No |
| Demo | View demo on Steam |
| DLC / extras | 1 listed on Steam |
| Content notices |
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| Website | Official website |