ActionAdventureIndieRPGStrategy
Monster Sanctuary
Give it 20 hours
Gets good by 20h then rated almost like by veterans
Fully opens up by 35h rated like by long-time players
Reach the ending 22% of players who started
Started playing 89% of owners
Steam reviews 91% positive of 12,725
What the data shows
- In the first 2 hours 1 in 4 reviews are negative (25%); after 35h it's 1 in 35 (3%).
- Fully opens up by hour 35.
- 22% of players who start reach the ending.
- Most players drop off before “The Keepers' Trail” (Complete Old Buran's training): only 79% of starters get there.
- 89% of owners got the first achievement.
When it gets good
Share of positive reviews by how many hours the reviewer had played when writing the review.
before it gets good opening up fully opened up
Based on all 12,774 Steam reviews in every language. Median playtime in a sample of 299 reviews: 35.4h for positive, 9.5h for negative. Almost every game is rated lower in the first 2–3 hours: that window includes refunds and quick first impressions. What matters is how deep the dip is and how fast the game recovers.
Where players quit
Share of players who started the game and reached each story milestone. 100% is the most common achievement (88.8% of owners), so people who bought the game and never launched it don't count.
- Started playing 100%
- The Keepers' Trail Complete Old Buran's training Most players quit here 79% −21
- Ariadne's Thread Calm the Blue Caves 61% −18
- Dungeon Master Confront the Alchemists in the Library 42% −19
- Cassandra's Wisdom Pass the Oracle's test 42%
- Become as Gobs Defeat the Goblin King 39% −2
- Icarus' Folly Restore balance to the Sun Palace 36% −3
- Dread Pirate Carter Recover long lost treasure 32% −5
- Vulcan's Forge Prove a worthy opponent 30% −1
- All Seeing Mad Eye Uncover the source of Marduk's powers 28% −2
- Persephone's Journey Explore the forbidden catacombs 26% −2
- Tower of Secrets Defeat Marduk 22% −4
story milestone ending biggest drop-off
Story milestones were labeled by AI from achievement names and descriptions; mistakes are possible.
All achievements (41)
story milestone ending side
- New Best Friend Hatch first monster 100%
- The Keepers' Trail Complete Old Buran's training 79%
- Friendly Neighbourhood Help out a resident of the Sanctuary 72%
- Off The Beaten Path Discover a hidden room entrance 72%
- Strategist Five-star a battle 71%
- Ariadne's Thread Calm the Blue Caves 61%
- Spoils of War Receive a reward from the Monster Army 54%
- Illusionist Receive a Tanuki Egg 45%
- You'll Never See It Coming Defeat all monsters in a single turn 45%
- Dungeon Master Confront the Alchemists in the Library 42%
- Cassandra's Wisdom Pass the Oracle's test 42%
- Metamorphosis Evolve a monster 40%
- Champion Hunter Become A Keeper Lancer 40%
- Become as Gobs Defeat the Goblin King 39%
- Icarus' Folly Restore balance to the Sun Palace 36%
- Beautiful Plumage Obtain a shifted monster 36%
- Teamwork! Achieve at least a 25 x Combo 36%
- Practice Makes Perfect! Receive a 5 star score in the Champion Challenge 32%
- Dread Pirate Carter Recover long lost treasure 32%
- Vulcan's Forge Prove a worthy opponent 30%
- Monster Tamer Win 200 wild encounters 30%
- Keep It Fresh Upgrade 50 pieces of gear 28%
- All Seeing Mad Eye Uncover the source of Marduk's powers 28%
- Persephone's Journey Explore the forbidden catacombs 26%
- Why Would You Ever Leave? Enter the Land of Blobs 23%
- Tower of Secrets Defeat Marduk 22%
- Final Form Reach max level with a Monster 18%
- Journey to the Forgotten World Tread where no Keeper has gone before 17%
- Incoming! Deal over 10,000 damage in a single hit 16%
- Nothing Left to Teach Beat all of Trainer Gotthelm's challenges 15%
- Frozen in Time Free the Wanderer from their icy prison 15%
- But that's a tale for another time… Restore the World Tree and learn about the true form of your Spectral Familiar 14%
- Legend of the Sanctuary Become a Keeper Master 14%
- Centurion Donate 100 Monsters to the Monster Army 13%
- Champion of Champions Receive 5 star scores against all Champions 10%
- Path to Infinity Complete twenty five battles in the Infinity Arena OR PvP 9.6%
- Bardic Inspiration Fully equip a Bard with instruments 8.3%
- Gotta Hatch 'em All! Obtain all monsters 7.9%
- Mythical Keeper Defeat all Legendary Keeper Battles 7.3%
- Wanderlust Uncover the whole map 7.0%
- Fashionista Unlock all alternative outfits 6.5%
Steam page Updated: 2026-10-18.