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Achievement Unlocker
"Control every listed Happy Room Steam achievement."
How do I install Achievement Unlocker?
Download the free ProjectMods desktop app, then install Achievement Unlocker for Happy Room in one click.
</>What does Achievement Unlocker do?
Achievement Unlocker gives you direct control over the 70 Happy Room Steam achievements supplied from SteamDB. Choose a named achievement from the list and unlock only that entry, or complete the supplied collection with one action. You can also lock every achievement and clear stored achievement progress when you want to begin again. Steam must be running for changes to reach your profile.
</>What is Achievement Unlocker?
Achievement Unlocker provides a searchable Happy Room achievement list with individual unlock, unlock-all, and full reset controls. It covers all 70 unique identifiers supplied in the SteamDB paste.
</>Common questions about Achievement Unlocker
What does Achievement Unlocker do in Happy Room?
Achievement Unlocker for Happy Room lets you control the supplied Steam achievement list from ProjectMods. Select one named achievement and unlock it, complete all 70 supplied achievements together, or reset the entire list. It is useful when an achievement failed to register, when you are rebuilding an old profile, or when you want a clean achievement run without repeating every laboratory requirement.
How does the Select Achievement control work?
Achievement Unlocker for Happy Room presents every supplied Steam achievement as a readable dropdown entry. Choose the title you recognize, then press Unlock Specified Achievement. The selected entry is sent to Steam and the updated result is saved immediately. Duplicate display titles such as Crossbowality, Maceality, Sawality, and Springality remain separate because Happy Room assigns them different achievement identifiers.
What is included when I unlock all achievements?
Achievement Unlocker for Happy Room includes all 70 unique SteamDB entries supplied for the game, covering laboratory progress, dungeon progress, armory milestones, damage records, tutorial completion, fatalities, and Hand Mode mastery. Unlock All Achievements works through that dropdown list. It does not separately complete the larger internal challenge board or place weapons in your room; those are handled by Happy Room progression and the Unlock Everything mod.
Can I reverse achievement changes later?
Achievement Unlocker for Happy Room includes Lock All Achievements for players who want to begin again. That action resets Steam achievement state and stored achievement progress together, then saves the result. Because it affects the entire list rather than one selected entry, use it only when you want a full reset. The individual dropdown is intended for precise changes without disturbing achievements you already earned normally.
When should I use the unlock actions?
Achievement Unlocker for Happy Room works best while Steam is running and the game is open through ProjectMods. Use the selected action for a missing or stubborn achievement, and use the complete-list action when setting up a finished profile. Steam may take a moment to refresh its visible achievement page after the result is stored, so check the profile again before repeating the action.
What options does Achievement Unlocker include?
Unlock Specified Achievement
Unlock the achievement selected above.
Select Achievement
Choose the Steam achievement you want to unlock.
Lock All Achievements
Reset all Steam achievements and their stored progress.
Unlock All Achievements
Unlock every listed Steam achievement.
Achievement Unlocker for Happy Room by ProjectMods unlocks one selected Steam achievement, the supplied list, or locks them all again.
System Requirements
What features does Achievement Unlocker include?
- Choose any of 70 named Steam achievements
- Unlock the supplied achievement list in one action
- Reset all achievements and stored progress when desired
Best For
- Recovering an achievement that did not register normally
- Preparing a completed profile for sandbox experimentation
- Starting a fresh achievement run after clearing progress
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.
Kill Dummy
Eliminate the active Happy Room dummy with one action so you can finish tests and move on faster.
