What to know
- The main story takes around 10–12 hours
- All quests and side content extend playtime to 14–18 hours
- 100% completion takes about 18–20+ hours
- Achievements require collectibles, combat challenges, and side jobs
If you’re planning your playthrough of Mouse: P.I. For Hire, knowing the expected completion time helps you decide how deep you want to go. Whether you stick to the main story or aim for every achievement, the game offers a tightly designed experience with meaningful optional content.
| Playstyle | Estimated Time | What It Includes |
|---|---|---|
| Main Story Only | 10–12 hours | Core missions, bosses, minimal exploration |
| Main + Side Content | 14–18 hours | All quests, side jobs, exploration |
| 100% Completion | 18–20+ hours | All collectibles, upgrades, secrets |
These timings vary depending on exploration, combat efficiency, and how thoroughly you investigate each level.
How long is Mouse: PI For Hire?
Main storyline completion
A focused run through the main campaign typically lands between 10 and 12 hours. This includes completing all major cases, progressing through core missions, and defeating required bosses.
If you avoid most optional content, the experience feels streamlined but slightly shorter than intended. The game is designed with exploration in mind, so skipping side elements removes some of its depth.
Playtime with all quests and exploration
When you start engaging with side jobs and optional objectives, your playtime increases to around 14–18 hours. This is where the game’s structure becomes more rewarding.
With around 20 interconnected levels and Metroidvania-style progression, you’ll revisit areas using newly unlocked abilities. This naturally adds more time while also revealing hidden paths and secrets.
Reaching 100% completion
For players aiming to fully complete the game, expect around 18–20+ hours. This includes gathering every collectible, unlocking all upgrades, and completing all side activities.
The biggest time investment comes from tracking collectibles and ensuring nothing is missed. Since there’s no mission replay system, missing items can require a full replay, which significantly impacts total completion time.
Mouse: PI For Hire Full achievement list
Below is the complete achievement table covering all categories including story, collectibles, combat, and side jobs:
| Achievement | Description | Type |
|---|---|---|
| The Platinum Falcon | Unlock all trophies | Platinum |
| Smoked Cheese and Mirrors | Complete Missing Magician case | Story |
| Tricks of the Trade | Unlock all special abilities | Story |
| Guns, Lots of Guns | Collect all non-corporate weapons | Collectible |
| Boom Town | Kill 20 enemies using thrown/kicked barrels | Combat |
| Babe Got Bat | Collect 10 Baseball Cards | Collectible |
| S’all in the Cards | Win 30 Baseball Card matches | Mini-game |
| So, Whodunit? | Pin every clue on evidence board | Collectible |
| Burdens of Blue Betty | Find key clues in Blue Betty case | Story |
| Herr Flick of the Wrist | Punch a BMP agitator | Misc |
| Comic Relief | Collect 5 comic strips | Collectible |
| Dime Novel Sleuth | Complete 5 side jobs | Side Quest |
| Extra! Extra! | Collect all Mouseburg Herald issues | Collectible |
| Firestarter | Kill 20 enemies by shooting explosive barrels | Combat |
| Misfortunes of the Missing Magician | Find key clues (Missing Magician case) | Story |
| Real Deal Gumshoe | Complete all side jobs | Side Quest |
| We’ll B.A.N.G., ok? | Upgrade all weapons to Tier 3 | Upgrade |
| The Prequel | Collect all comic strips | Collectible |
| Quint’s Delight | Kick shark to get license plate | Misc |
| Secrets of the Shrew Shortage | Find key clues (Shrew case) | Story |
| This is My Boomstick! | Upgrade one weapon to Tier 3 | Upgrade |
| Goud’em! | Kill 5 enemies in 10 seconds | Combat |
| Cover to Cover | Collect 10 Herald issues | Collectible |
| Our Lesser Brothers | Complete Shrew Shortage case | Story |
| Extremely Graphic Novel | Collect 10 comic strips | Collectible |
| Paper Person | Collect 5 Herald issues | Collectible |
| Pocket Aces | Win one Baseball Cards match | Mini-game |
| Everybody Loves Rayguns | Unlock X1 D-Mousifier weapon | Unlock |
| Starter Deck | Collect 5 Baseball Cards | Collectible |
| Card Shark | Collect all Baseball Cards | Collectible |
| M-m-muenster Kill! | Kill 10 enemies in 20 seconds | Combat |
| Spike-D 16 TONS | Crush 20 enemies with objects | Combat |
| Tinsel Boulevard | Complete Blue Betty case | Story |
| Tip of the Cheeseberg | Finish the game | Story |
| Hole-y Trinity | Kill 3 enemies with one shot | Combat |
What affects your total playtime
Your completion time can vary significantly depending on how you approach the game. Exploration adds hours, while rushing through missions shortens the experience.
Combat difficulty, puzzle-solving, and backtracking also play a major role. Some players may spend extra time mastering combat challenges or searching for hidden collectibles.
The game blends FPS mechanics with detective-style investigation, which naturally creates different pacing for different players.
