The Hardest Games to 100% Complete on Steam
For every cozy afternoon completion there's a game that eats achievement hunters alive. These are the Steam completions defined by savage skill walls, marathon grinds and a handful of achievements so brutal they become badges of honour. Each entry explains exactly what makes it so tough. Think you can clear one? Track your progress on SteamVault and prove it.
Geometry Dash
Many achievements require beating brutally hard user levels with frame-perfect timing. There is no grinding your way past skill here โ only the truly dedicated finish this one.
View Geometry Dash achievements & rarity โ
The Binding of Isaac: Rebirth
The legendary "Dead God" 100% demands hundreds of runs across every character, fighting brutal bosses while the game throws relentless RNG at you. A months-long commitment.
View The Binding of Isaac: Rebirth achievements & rarity โ
Crypt of the NecroDancer
Clearing every zone with every character โ including the no-upgrades nightmare that is Aria โ turns this rhythm roguelike into one of the most punishing completions on Steam.
View Crypt of the NecroDancer achievements & rarity โ
Risk of Rain 2
A mix of obscure one-off challenges and Monsoon-difficulty survival runs. Several achievements are notorious for needing perfect execution under escalating pressure.
View Risk of Rain 2 achievements & rarity โ
Super Meat Boy
A-plus ranks demand near-flawless speedruns of already-savage platforming, and the Dark World levels are some of the hardest 2D platforming ever made.
View Super Meat Boy achievements & rarity โ
Jump King
One mistimed jump sends you tumbling far down the tower. The achievements reward mastery of a game designed entirely around punishing precision and patience.
View Jump King achievements & rarity โ
Hollow Knight
Most of the list is fair โ until the Pantheon of Hallownest asks you to beat dozens of bosses back-to-back without dying. Widely cited as one of gamingโs hardest challenges.
View Hollow Knight achievements & rarity โ
Cuphead
Beating every boss on Expert and earning top grades requires memorising patterns and executing flawlessly. A gorgeous game that does not hold your hand.
View Cuphead achievements & rarity โ
Sekiro: Shadows Die Twice
FromSoftwareโs most demanding combat system, plus multiple endings across new-game cycles. There is no summoning help and no easy mode โ just you and the parry timing.
View Sekiro: Shadows Die Twice achievements & rarity โ
Dark Souls III
Collecting every spell, ring and ending requires several full playthroughs, careful planning and surviving one of the toughest action-RPG worlds around.
View Dark Souls III achievements & rarity โ
Enter the Gungeon
Unlocking every character past and beating the secret bosses takes both deep mastery of bullet-hell dodging and a long, RNG-heavy grind through the Gungeon.
View Enter the Gungeon achievements & rarity โ
Celeste
Clearing every B-side and C-side chapter pushes the precision platforming to its absolute limit. Doable with persistence โ but it will test your patience and your fingers.
View Celeste achievements & rarity โMore SteamVault lists
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SteamVault tracks every achievement and 100%, shows global rarity on each, and ranks you against hunters worldwide โ free forever.