
Similar games
Games like Primordialis
Kyler Natividad, Keith Sammut · 2025 · Windows
Steam: 92 % positive of 1,012 reviews, as of Oct 28
Primordialis is a physics-based roguelike fish builder. Unleash your creativity to defeat creatures using venomous tentacles, electrical shocks, or exploding children. The possibilities are endless. Explore the primordial depths to reveal its secrets and discover what lies beyond.
24 games that play like Primordialis and 24 that look like it. Closest by gameplay: Sipho, Subnautica and Everything is Crab: The Animal Evolution Roguelite.
Player tags
Steam reviews
What players say
Mostly positive: players love the open creature building and roguelike challenge, but early access bugs, harsh early game and a few unfair enemies frustrate many.
Many players enjoy building creatures from a large catalogue of cells and discovering unexpected combinations, such as lasers, homing missiles, acid sprayers and even absurd constructions. Players compare it to Spore's cell stage and Noita, and they like that the rules are learned through experimentation rather than tutorials. The roguelike loop, where each death restarts a run, is described as punishing but rewarding once a working build is found. Some players complain about the difficult early game, unclear cell tooltips, bugs such as objects flying off into the void, controller and key binding problems, and the second area, where certain enemies, especially a jellyfish, are considered too strong. Some reviewers would like co-op and more enemy variety. Recent reviews are similarly divided, with praise for creativity and complaints about balance and performance.
Praised
- Creative creature building
Players enjoy combining a large variety of cells into almost any creature they can imagine, from fish to machines.
Many players - Learning through experimentation
Reviewers like that cell interactions are discovered by trying things out and watching enemies, rather than through tutorials.
Many players - Roguelike challenge
Players describe the punishing runs and the satisfaction of finally beating a boss with a working build as a major draw.
Many players - Comparisons to Spore and Noita
Reviewers describe it as a mix of Spore's cell stage and Noita's knowledge-based progression and spell crafting.
Many players
Criticised
- Harsh early game
Players find the first biome repetitive and frustrating, with weak starting cells and early deaths.
Many players - Unclear cell descriptions
Players say tooltips are too vague or incomplete, so they must work out hidden mechanics by trial and error.
Some players - Bugs and performance
Reviewers mention glitches such as objects launched into the void, crashes with large creatures, and performance problems.
Some players - Unfair enemies in second area
Players say the jellyfish and laser enemies in the second area are far stronger than the bosses and feel unbalanced.
Some players
- Who it suits
- Players who enjoy tinkering with mechanics, sandbox creativity and hard roguelikes that reward experimentation.
- Who should skip it
- Players who want something relaxed or casual, or who dislike mechanical building and punishing early game.
Short vs. long playtime: Players with hundreds of hours mostly praise the endless build variety, while newcomers more often mention the difficult start and unclear tooltips.
Summarised by AI from 80 Steam reviews (English, helpful and recent), as of Oct 28, 2026.
Best matches
Plays and looks like Primordialis
Close to it by gameplay and by look, so it appears in both lists below.
By gameplay
Plays like Primordialis
Matched from Steam descriptions and player tags. The tags under each game are the ones both games share.

Sipho
83 % positive of 342
Shared: Simulation · Physics · Action Roguelike

Subnautica
97 % positive of 343,380
Shared: Exploration · Sandbox · Sci-fi

Everything is Crab: The Animal Evolution Roguelite
75 % positive of 7,094

Lake of Creatures
91 % positive of 361
Shared: Physics · Action Roguelike · Rogue-like

Feed the Deep
87 % positive of 465
Shared: Physics · Exploration · Rogue-like

Pathogenic
93 % positive of 4,933

Ecosystem
76 % positive of 610
Shared: Simulation · Nature · Sandbox

Don't Starve
95 % positive of 97,247
Shared: Simulation · Exploration · Rogue-like

Noita
95 % positive of 81,843
Shared: Physics · Action Roguelike · Rogue-like

CleanFall
93 % positive of 503
Shared: Simulation · Physics · Exploration

Caves of Qud
93 % positive of 12,012
Shared: Rogue-like · Sci-fi · Difficult

Swallow the Sea
97 % positive of 2,470
Shared: Nature · Exploration · Underwater
More matches
- Muck93 % positive of 185,047Shared: Action Roguelike · Exploration · Rogue-like
- The Sapling87 % positive of 1,963Shared: Simulation · Nature · Sandbox
- Subnautica 290 % positive of 118,541
- SPORE™92 % positive of 67,267Shared: Simulation · Exploration · Sandbox
- Thrive91 % positive of 1,711Shared: Simulation · Nature · Sandbox
- Dwarf Fortress94 % positive of 29,400Shared: Simulation · Exploration · Rogue-like
- Feed and Grow: Fish78 % positive of 20,933Shared: Simulation · Sandbox · Underwater
- Creature Crafter86 % positive of 746Shared: Simulation · Physics · Exploration
- The Bibites: Digital Life95 % positive of 224Shared: Simulation · Physics · Nature
- Monstrum91 % positive of 3,178Shared: Action Roguelike · Rogue-like · Rogue-lite
- Infinite Blue64 % positive of 373Shared: Simulation · Physics · Nature
- Cogmind95 % positive of 1,582Shared: Rogue-like · Sci-fi · Difficult
By look
Looks like Primordialis
Matched from screenshots. Each card shows the screenshot closest to the look of this game.

Reassembly
93 % positive of 3,616

Heat Signature
94 % positive of 6,867

Sir, We Have an Orc Problem
85 % positive of 4,749

Vacuum Pilot
90 % positive of 203

Spartan Survivors
87 % positive of 409

ShellShock Live
92 % positive of 29,352

Space Rock Breaker
95 % positive of 4,873

Dome Keeper
91 % positive of 19,273

Nimbatus - The Space Drone Constructor
78 % positive of 1,764

Swallow the Sea
97 % positive of 2,470

A Game About Feeding A Black Hole
88 % positive of 3,587

Good Robot
90 % positive of 150
More matches
- Underminer93 % positive of 1,001
- Wall World89 % positive of 11,498
- Zero-K92 % positive of 4,426
- Astroloot91 % positive of 596
- Nebulock85 % positive of 591
- Orbitmine81 % positive of 512
- Battlevoid: Harbinger78 % positive of 933
- Particle Fleet: Emergence92 % positive of 1,202
- Vectorio Classic93 % positive of 1,472
- To The Core91 % positive of 5,111
- Rock Crusher83 % positive of 356
- Far Mining96 % positive of 426
At a glance
What games like Primordialis have in common
- The tags they share most often with Primordialis: Simulation (12 of 24), Exploration (9) and Rogue-like (9).
- They came out between 2008 and 2026, 3 of them after Primordialis (2025).
- Best rated by Steam players: Swallow the Sea (97 % positive of 2,470).
How these matches work
Matches come from embeddings of Steam descriptions, player tags and screenshots, computed offline. “Plays like” compares what the games are about and how players tag them; “Looks like” compares their screenshots. The share of positive reviews is based on Steam user reviews.

