Let’s be real for a second: Mount Holly is a nightmare. A beautiful, architecturally impossible, roguelike nightmare. You’ve probably spent hours staring at the drafting board in Blue Prince, trying to figure out how to squeeze one more hallway into a floor plan that refuses to cooperate. Or maybe you’re just tired of waking up at the Entrance Hall with nothing to show for your last run but a handful of useless gems and a slightly better understanding of why your uncle Simon left you this mess.
If you're hunting for the platinum—or the "Trophy of Trophies" as the game calls it—you're looking at a 100% completion journey that isn't just about skill. It's about luck, math, and knowing exactly when to break the rules.
The Sixteen Weights Around Your Neck
There are 16 trophies in total. Half of them are "standard" and the other half are "secret," but honestly, the distinction doesn't matter much when you're stuck on rank 8 with no keys. To get that final 100% completion, you have to collect every single one in a single save file.
Wait. That's actually impossible.
The game forces you into different save files for things like Dare Mode and Cursed Mode. To get them all together, you have to reach the Blackbridge Grotto, find the terminal (login: MoorR or BabbA), and use the "Import Trophy Data" function. It’s a bit of a meta-game mechanic that feels like you're hacking your own inheritance.
The Heavy Hitters: Day One and Speed
These are the ones that make people quit. The Day One Trophy requires you to reach Room 46 in a single in-game day. It’s brutal. You have to manage steps like they’re oxygen.
Most successful runs for this rely on the Garage and Utility Box combo to get into the Tomb early. Why? Because the Tomb, when drafted as an outer room, can be farmed for gold. You need that gold to buy the Emerald Bracelet from the Showroom, which lets you bypass gem costs.
And if you’re going for the Trophy of Speed (under an hour of real time), don't even think about reading the lore. Just run. If you manage the Day One run effectively, you’ll usually pop the Speed trophy naturally, provided you don't spend twenty minutes staring at a dartboard.
The Blue Prince Trophy Guide to Secret Achievements
Some of these are less about "winning" the game and more about playing it in a very specific, slightly insane way.
- Trophy 8: This is a logic check. You need to solve the Gallery Puzzle to get Key 8. Then, you have to find a locked door specifically on Rank 8 (the row right before the Antechamber). Use the key, and Room 8 spawns magically.
- Diploma Trophy: This one is a literal test. You have to draft the Schoolhouse as an outer room, which lets you place nine Classrooms inside the manor. Each one acts like a grade level. The ninth one has a 46-question final exam. If you’ve been paying attention to the lore memos, you’ll pass. If not? Well, back to the drafting board.
- Trophy of Drafting: Also known as the "20 Dead Ends" challenge. You have to win the Drafting Strategy Sweepstakes by placing 20 dead-end rooms (like the Closet or Secret Passage) in one run. Tip: The Bunk Bed counts as two dead ends. Use the Drafting Studio to force these rooms into your pool.
The "Full House" Headache
The Full House Trophy sounds easy on paper: draft a room in every single one of the 45 available slots. In practice, it’s a geometric catastrophe. You’ll need a lot of Connectors and a massive amount of stars to reroll rooms so they actually fit the available doors.
Basically, you want to snake your way through the mansion. Don't just build straight up. Fill the bottom rows completely before moving to the higher ranks. If you leave a gap in the middle of Rank 3, you're probably not getting back to it.
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Mastering the Economy
You can't get the Trophy of Wealth (buying out the entire Showroom) without a massive bankroll.
- Laboratory Experiments: Focus on anything that increases your gold allowance.
- The Vault: Drafting this gives you a flat +40 gold. It’s a must-pick.
- Freezer: If you have a good run but aren't ready to finish, "freeze" your assets. You’ll keep your gold and gems for the next day.
- The Casino: It's risky, but if you've got the Drafting Studio, you can force the Casino to appear and pray for a jackpot.
The Reality of RNG
Here’s the thing no one wants to hear: sometimes the game just hates you. You can have the perfect strategy for the Trophy of Sigils, but if the game won't give you the Basement Key or the Power Hammer, you're stuck.
Don't be afraid to Alt+F4. If you check your outer room at the start of the day and it's not the Tomb or the Workshop, you can reset without losing your day's progress. It’s a bit cheesy, but Mount Holly is an unfair place; you might as well even the odds.
Actionable Next Steps for 100%
- Prioritize the "Trophy 8" run early. It teaches you how to manipulate room placement by rank, which is a vital skill for the later, harder trophies.
- Use the Coat Check religiously. If you find a Master Key or a rare item like the Power Hammer, store it. You can retrieve it on a future run when you actually have the resources to make it to Room 46.
- Watch your steps. Draft the Nursery or Kitchen whenever they appear. Extra steps are the only way to explore the outer reaches of the manor without collapsing.
- Check the Room Directory. If you’re missing the Explorer’s Trophy, look for the blue-colored "blueprint" rooms. You need to see every single room at least once.
Once you've cleared Room 46 for the first time, you'll get the Inheritance Trophy. That's just the beginning. The real work starts when you head to the Blackbridge terminal to start stitching your save files together into one master legacy.
To finish your collection, your next move should be focusing on the Workshop Contraptions. You need to find all eight blueprints scattered throughout the manor and build them in a single run to unlock the Trophy of Invention, which provides the utility needed for the more aggressive speedruns.