Want more mods for Happy Room? Explore our entire collection!
Unlock Everything
"Open the complete Happy Room laboratory in one action."

How do I install Unlock Everything?
Download the free ProjectMods desktop app, then install Unlock Everything for Happy Room in one click.
</>What does Unlock Everything do?
Unlock Everything opens Happy Room's major progression rewards with one action. It enables all 77 story weapons, the Hand Mode arsenal, maximum weapon upgrades, Sandbox, Desert Mode, formations, water controls, skins, and available hats. The result is saved to your profile and the current laboratory menus refresh when they are available. Steam achievements remain separate so you can control those independently.
</>What is Unlock Everything?
Unlock Everything is a complete Happy Room progression shortcut covering the story and Hand Mode arsenals, maximum upgrades, Sandbox, Desert Mode, all four skins, available hats, formations, and water controls.
</>Common questions about Unlock Everything
What does Unlock Everything open in Happy Room?
Unlock Everything for Happy Room opens the major playable progression rewards through ProjectMods. It enables all 77 story weapons, adds the full weapon list to Hand Mode, maximises weapon upgrades, and opens Sandbox and Desert Mode. It also unlocks every dummy skin, the hats available in the loaded game, Hand Mode formations, and Hand Mode water controls. Steam achievements are intentionally left to the separate Achievement Unlocker.
Does Unlock Everything maximise weapon upgrades too?
Unlock Everything for Happy Room maximises the upgrade levels shown by the active laboratory upgrade screen. When that screen is available, the mod applies the proper maximum for each weapon instead of guessing one level for every item, then saves the completed upgrade list. If you press the action extremely early during startup, wait for the main menu or laboratory interface to finish loading and press it once more so the visible upgrade controls can refresh.
Which modes and Hand Mode features are included?
Unlock Everything for Happy Room opens Sandbox, Desert Mode, the complete Hand Mode weapon list, formations, and water controls. These are saved progression flags rather than temporary toggles, so they remain available after returning to the menu. The action does not automatically begin a mode or replace your current room. You can choose the unlocked destination normally and keep any room arrangement you were already working on.
How are skins and hats handled?
Unlock Everything for Happy Room opens all four dummy skins found in the game: Dummy, Zombie, Robot, and Log. For hats, it reads the available hat count when the cosmetic manager is loaded and opens every entry it reports. A fallback covers the standard set when used from another screen. The mod does not force a cosmetic choice, so your current skin and hat stay selected until you change them yourself.
When should I press Unlock Everything?
Unlock Everything for Happy Room is best used after the main menu or laboratory has fully appeared. At that point the profile, weapon menu, upgrade menu, and cosmetic lists are ready, allowing the action to update both saved progress and visible controls. You normally need to press it only once. If a menu was not loaded yet, opening that menu later or repeating the action refreshes the remaining display without removing any unlocked content.
What options does Unlock Everything include?
Unlock Everything
Unlock weapons, upgrades, modes, skins, hats, and Hand Mode features.
Unlock Everything for Happy Room by ProjectMods opens weapons, upgrades, modes, cosmetics, and Hand Mode features.
System Requirements
What features does Unlock Everything include?
- Unlock all 77 story and Hand Mode weapons
- Maximise every available weapon upgrade
- Open extra modes, skins, hats, formations, and water controls
Best For
- Building unrestricted laboratory combinations immediately
- Restoring broad progression on a new profile
- Testing late-game weapons and cosmetics without repeated objectives
More Mods for Happy Room

Damage Multiplier
Choose a 0× to 100× damage multiplier for weapons and traps, then toggle the effect whenever needed.

Give Money
Choose custom dollar and euro amounts, add either currency instantly, or reset both balances to zero.

Infinite Ammo
Keep placed weapons at full ammunition and bypass ordinary ammo checks while the option is enabled.







