Steam Games With the Most Achievements
Some Steam games have a tidy 20-achievement list. These have hundreds — even over a thousand. Below are the games with the biggest achievement counts on Steam, ranked, with counts verified against Steam's own data (so they're accurate, not guessed). If you love a long-haul grind, start here — and track every unlock on SteamVault.
PAYDAY 2
The undisputed king. Years of free updates piled on heist-specific challenges until the list ballooned past thirteen hundred — a number most players never even attempt to finish.
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Idle Champions of the Forgotten Realms
A free-to-play idle game that keeps adding seasonal champions and event achievements. The count climbs with every update, making a true 100% a permanently moving target.
View Idle Champions of the Forgotten Realms achievements & rarity →
The Binding of Isaac: Rebirth
Base game plus the Afterbirth, Afterbirth+ and Repentance expansions stack into one of the deepest unlock trees in gaming — items, characters, marks and the infamous Dead God.
View The Binding of Isaac: Rebirth achievements & rarity →
Geometry Dash
A rhythm-platformer whose achievements demand genuine skill — beating user levels, collecting every coin and orb, and grinding stars across hundreds of unlocks.
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Team Fortress 2
Nine classes, each with its own pack of milestone achievements, plus map and event packs. A Valve classic that has quietly held one of Steam’s biggest lists for over a decade.
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Soulstone Survivors
A survivors-like packed with character, weapon and curse-level unlocks. The list is huge but mostly natural progression — a grinder’s dream rather than a skill wall.
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Sid Meier's Civilization VI
Leaders, wonders, scenarios and "win this exact way" challenges across every game mode add up to a 4X completion that can span hundreds of hours.
View Sid Meier's Civilization VI achievements & rarity →
Sid Meier's Civilization V
The previous Civ entry still carries a giant list of victory, scenario and oddly-specific historical achievements — many requiring full multi-hour campaigns each.
View Sid Meier's Civilization V achievements & rarity →
Vampire Survivors
The bullet-heaven phenomenon hides a sprawling web of character, weapon-evolution and secret unlocks — cheap, addictive, and surprisingly deep to fully clear.
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Stellaris
A grand-strategy space epic where achievements span empire types, crises and events — and expansions keep adding more to chase across very long campaigns.
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Warframe
A free-to-play looter-shooter with a mastery list that grows alongside its endless content updates — a 100% that demands serious long-term commitment.
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Crusader Kings III
Dynasties, schemes and gloriously specific medieval scenarios. Many achievements need an entire playthrough on Ironman, making the full list a true marathon.
View Crusader Kings III achievements & rarity →More SteamVault lists
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