Games like Sullen
Sullen is a fast-paced, challenging platformer set inside of a circle. Your ultimate goal is to work through all of the levels and defeat the sullen eye that relentlessly attacks you. You assume control of a small pentagon and must dodge, jump, and shoot your way to victory.
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Ranked by collaborative filtering across millions of Steam libraries plus content overlap on genres, tags, and developers.
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Serious Sam HD: The Second Encounter is a visually upgraded and fully Steam supported remake of the original high-adrenaline single-play and 16-player co-operative arcade-action FPS and Gamespot's Game of the Month!
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Maytroid. I swear it's a nice game too
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Insurgency
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Hollow Knight
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SteamWorld Dig
SteamWorld Dig is an action-adventure puzzler with strong Metroidvanian influences set in the SteamWorld Universe. You’ll need to dig deep into the earth, gather resources to upgrade your tools and abilities, take on enemies, solve challenging puzzles and uncover the secrets to save a dying town.
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Shooting Stars!
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Handsome Mr. Frog
Jump, lick, and spit your way through four worlds in a new-school arcade adventure starring the nominal Handsome Mr. Frog, a good looking fellow whose hat was jacked by a bunch of unattractive normies.
Plays great on Steam Deck
Valve-Verified or Playable picks from the similar pool — ready to go on Deck out of the box.
- 1
- 2
Hollow Knight
Forge your own path in Hollow Knight! An epic action adventure through a vast ruined kingdom of insects and heroes. Explore twisting caverns, battle tainted creatures and befriend bizarre bugs, all in a classic, hand-drawn 2D style.
- 3
SteamWorld Dig
SteamWorld Dig is an action-adventure puzzler with strong Metroidvanian influences set in the SteamWorld Universe. You’ll need to dig deep into the earth, gather resources to upgrade your tools and abilities, take on enemies, solve challenging puzzles and uncover the secrets to save a dying town.
- 4
Handsome Mr. Frog
Jump, lick, and spit your way through four worlds in a new-school arcade adventure starring the nominal Handsome Mr. Frog, a good looking fellow whose hat was jacked by a bunch of unattractive normies.
Frequently asked about Sullen
- Is Sullen verified for Steam Deck?
- Yes — Sullen is Steam Deck Verified, meaning Valve has confirmed it runs well on the Deck with full controller, text legibility, and default configuration support.
- How much does Sullen cost?
- Sullen is listed on Steam at 2.99 USD (current store price; Steam sales may reduce this temporarily).
- What games are most similar to Sullen?
- Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Sullen are Serious Sam HD: The Second Encounter, Blast-off, Maytroid. I swear it's a nice game too.
- Who developed Sullen?
- Sullen was developed by Chris Charbonneau.
imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on Sullen.
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