Single-player games like Lost Sea
Below are 16 single-player Steam games similar to Lost Sea, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Lost Sea page.
Ranked picks
- 1
Dunjungle
Single-player alternative to Lost Sea — playable solo, no multiplayer required. Shares Action and Indie with Lost Sea.
A 2d action-packed roguelite about a monkey hero protecting the jungle from the rise of a corruptive power. Explore ever-changing dungeons, fight weird enemies and gear up with lots of weapons and relics you can combine for a new experience every run. Explore, fight, die, and repeat!
- 2
Astral Ascent
Single-player alternative to Lost Sea — playable solo, no multiplayer required. Shares Action and Indie with Lost Sea.
Choose one of four heroes and explore the Garden, an astral prison guarded by 12 powerful mystical bosses: the Zodiacs. Challenge them with dozens of unique spells and faithful friends by your side to unfold the story of this platform roguelite with lightning fast combat.
- 3
BELOW
Single-player alternative to Lost Sea — playable solo, no multiplayer required. Shares Action and Indie with Lost Sea.
BELOW is a solitary journey through the haunted depths of a forbidden isle. Explore. Survive. Discover.
- 4
NECROPOLIS: BRUTAL EDITION
Single-player alternative to Lost Sea — playable solo, no multiplayer required. Shares Action and Indie with Lost Sea.
NECROPOLIS: BRUTAL EDITION is a major update featuring a new playable adventurer (The Brute), a completely new outdoor environment (The Black Forest), and lots of new enemies, weapons, armor, traps, potions, scrolls, and other big improvements to the game.
- 5
bit Dungeon II
Single-player alternative to Lost Sea — playable solo, no multiplayer required. Shares Action and Indie with Lost Sea.
bitDungeon II is fast action-adventure game with a giant overworld to explore. You are a spirit in an undead world of demons. Your "loved one's " grave has been desecrated. Fight through these corrupted lands, and bring peace to her soul.
- 6
Spirits Abyss
Single-player alternative to Lost Sea — playable solo, no multiplayer required. Shares Action and Indie with Lost Sea.
Spirits Abyss is a roguelite platformer with destructible terrain. Cast into the Abysm you must explore its diverse depths battling phantasmic meanies and plundering its useful treasures to find a way home... but does something nestle beyond the realmic veil of death?
- 7
Gloom
Single-player alternative to Lost Sea — playable solo, no multiplayer required. Shares Action and Indie with Lost Sea.
Afflicted by severe amnesia, you drift deep into the Common Dream. You scour for the lost pages of the Necronomicon, while clinging on to any little purpose you have left. Faced with mad dreamers, horrible abominations and eldritch deities, you feel drawn to the dark Abyss deep within.
- 8
TinyKeep
Single-player alternative to Lost Sea — playable solo, no multiplayer required. Shares Action and Indie with Lost Sea.
TinyKeep, a top-down procedurally generated dungeon escape game with permadeath - you die and it's game over. Master the frantic physics-based combat, lure enemies into traps or make them fight each other for dominance. There are many ways to survive in TinyKeep!
- 9
Otoko Cross: Pretty Boys Klondike Solitaire
Single-player alternative to Lost Sea — playable solo, no multiplayer required. Shares Indie with Lost Sea.
Meet 5 cute cross-dressing characters as they challenge you to classic solitaire! Win with the cards you're dealt and unlock new outfits for your companions in this this celebration of Japanese "otokonoko" style and sub-culture.
- 10
Otoko Cross: Pretty Boys Mahjong Solitaire
Single-player alternative to Lost Sea — playable solo, no multiplayer required. Shares Indie with Lost Sea.
Meet 5 cute cross-dressing characters as they challenge you to tile-matching mahjong solitaire! Clear the playfield and unlock new outfits for your companions in this celebration of Japanese "otokonoko" style and sub-culture.
- 11
Z-Warp
Single-player alternative to Lost Sea — playable solo, no multiplayer required. Shares Action and Indie with Lost Sea.
Z-Warp is an intense vertical shoot’em up presented in retro pixel art style, featuring frenetic arcade-inspired action where blasters, bombs and KILLER specials are your only allies.
- 12
Super Jagger Bomb
Single-player alternative to Lost Sea — playable solo, no multiplayer required. Shares Action and Indie with Lost Sea.
With retro-styled 3D graphics and mechanics that are easy to pick up and play but tough to master, Super Jagger Bomb offers a straightforward and rewarding gameplay experience.
- 13
Otoko Cross: Pretty Boys Breakup!
Single-player alternative to Lost Sea — playable solo, no multiplayer required. Shares Action and Indie with Lost Sea.
Meet a diverse cast of 9 cute crossdressing characters as they challenge you in brick-breaking arcade action! Score points to unlock new outfits for your companions in this this celebration of Japanese "otokonoko" style and sub-culture.
- 14
Otoko Cross: Pretty Boys Dropout!
Single-player alternative to Lost Sea — playable solo, no multiplayer required. Shares Action and Indie with Lost Sea.
Meet a diverse cast of 9 cute crossdressing characters as they challenge you in block-sliding puzzle action! Score points to unlock new outfits for your companions in this this celebration of Japanese "otokonoko" style and sub-culture.
- 15
RedRaptor
Single-player alternative to Lost Sea — playable solo, no multiplayer required. Shares Action and Indie with Lost Sea.
Blast off for a retro arcade experience in RedRaptor, a vertical shoot’em up inspired by genre classics of the ’90s!
- 16
Feeble Light
Single-player alternative to Lost Sea — playable solo, no multiplayer required. Shares Action and Indie with Lost Sea.
Blast off as a little star trying to rid the cosmos of angry celestial beings in Feeble Light, a 3-tone pixel art shoot’em up where minimalistic presentation makes way for precision controls and fluid animation!