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Best Science Games

Top 50 of 97 qualifying games — tagged Science (community voting), 1,000+ reviews · ranked by Wilson lower bound on Steam review score · review data as of 2026-10-22. Under each game: what its Steam reviewers most often mention (+ praise, − complaint), with how many of about 100 most-helpful reviews raise it — from the review consensus on each game's page.

1 Portal 2 (2011) Platformer · Puzzle · First-Person · $9.99 + creative, satisfying portal-based puzzles 56+ witty writing and memorable characters 53 98.7%468,800 reviews 2 Portal (2007) Puzzle · Puzzle-Platformer · First-Person · $9.99 + inventive portal physics puzzles 82+ GLaDOS humor and memorable endings 35− overly short campaign 17 98.5%200,754 reviews 3 Steam Engine Simulator (2023) Simulation · Physics · Education · Free + Steam engine operation 20+ Learnable engine operation 6− Long achievement completion 5 98.7%9,018 reviews 4 South Scrimshaw, Part One (2023) Sci-fi · Linear · Hand-drawn · Free 99.0%1,621 reviews 5 CATO: Buttered Cat (2024) Puzzle-Platformer · Cats · Cute · $10.99 + Puzzle mechanics and level design 17+ Cute cat-toast pixel art and skins 11 98.3%3,177 reviews 6 The Powder Toy (2024) Simulation · Sandbox · 2D · Free + Creative, complex sandbox simulation 52+ Free with extensive features 9 98.2%3,086 reviews 7 STEINS;GATE (2016) Visual Novel · Story Rich · Anime · $29.99 + masterclass emotional time-travel narrative 45+ worth full price always 5− slow start and true-ending locks 5 97.1%27,143 reviews 8 Horsey Game (2026) Simulation · Creature Collector · Life Sim · $9.99 + Deep genetic editing and breeding systems 29+ Postgame content and activities 6 97.2%3,121 reviews 9 Spaceflight Simulator (2022) Sandbox · Space Sim · Space · $9.89 + Fun, creative, engaging sandbox building 95+ Easy to learn, hard to master 32− Price too high or expensive 5 96.8%9,808 reviews 10 Universe Sandbox (2015) Sandbox · Space · Simulation · $29.99 + fun realistic space sandbox 91+ impressive graphics and visual detail 6− lag and heavy hardware demands 12 96.5%32,545 reviews 11 Aviassembly (2025) Early Access · Flight · Building · $9.99 + Fun, addictive creative sandbox 93+ Good difficulty curve and balance 17− Wants more depth and features 23 96.6%9,571 reviews 12 Reentry - A Space Flight Simulator (2025) Early Access · Space · Simulation · $34.99 + Detailed spaceflight simulation 72+ Steep but satisfying learning curve 19− Demanding PC performance 9 97.0%1,372 reviews 13 SpaceEngine (2019) Early Access · Open World · Casual · $20.99 + Engaging space exploration and discovery 77+ Stunning visuals and incredible graphics detail 24− Failed to meet expectations or deliver 7 96.2%16,905 reviews 14 The Message from Deep Space (2026) Science · Puzzle · Aliens · $9.99 + Language-decoding puzzles 77+ Moving alien-contact narrative 45− Strict, frustrating solutions 9 96.7%1,957 reviews 15 Timberborn (2026) City Builder · Voxel · Colony Sim · $34.99 + engaging water and building systems 97+ flexible rewarding survival challenge 25− shallow repetitive sandbox systems 10 96.0%41,921 reviews 16 Abiotic Factor (2025) Survival · Online Co-Op · Open World Survival Craft · $34.99 + rewarding exploration and crafting 69+ vast amount of content 28− GPU spikes and hosting lag 7 95.8%59,389 reviews 17 Kerbal Space Program (2015) Space · Simulation · Sandbox · $9.99 + fun deep rocket-building sandbox 91+ mods and enduring sandbox variety 17− steep confusing learning curve 17 95.6%148,061 reviews 18 Mudborne: Frog Management Sim (2025) Casual · Simulation · Education · $7.99 + satisfying frog breeding puzzles 67+ charming pixel frog visuals 38− confusing or overwhelming beginnings 11 96.7%1,078 reviews 19 The Talos Principle (2014) Puzzle · Philosophical · First-Person · $29.99 + satisfying, cleverly designed puzzles 62+ thought-provoking philosophical narrative and writing 37− uneven, frustrating puzzle difficulty 11 95.3%33,186 reviews 20 Liftoff: FPV Drone Racing (2018) Simulation · Flight · Racing · $19.99 + Effective FPV learning tool 73+ Enables rapid real-world skill transfer 16− Steep initial learning curve 6 95.2%14,082 reviews 21 Uncrashed : FPV Drone Simulator (2021) Simulation · Flight · Sports · $14.99 + Realistic flight physics good for learning 80+ Excellent graphics and visual quality 25− Interface glitches and physics quirks 5 95.3%8,006 reviews 22 Lucy -The Eternity She Wished For- (2016) Visual Novel · Anime · Dating Sim · $9.99 + emotional android-human story 43+ strong soundtrack and voice acting 9− predictable, underdeveloped narrative 16 95.0%8,255 reviews 23 The Talos Principle 2 (2023) Puzzle · Story Rich · First-Person · $29.99 + Creative and engaging puzzle design 63+ Thoughtful and philosophically engaging narrative 40− Excessive walking or overly easy puzzles 14 94.9%13,432 reviews 24 Mars First Logistics (2025) Early Access · Stylized · Mars · $19.99 + Creative vehicle problem solving 79+ Challenging creative engineering tasks 23− Repetitive delivery missions 12 94.9%3,795 reviews 25 Botany Manor (2024) Exploration · Puzzle · Walking Simulator · $24.99 + Relaxing plant-growth puzzles 75+ Cozy manor and garden visuals 47− Short three-to-five-hour campaign 35 95.2%1,585 reviews 26 Automation - The Car Company Tycoon Game (2015) Simulation · Management · Building · $29.99 + Creative car design and engine building 81+ Steep but rewarding learning curve 8− Confusing and difficult interface 6 93.9%18,187 reviews 27 Sandboxels (2025) Sandbox · Science · God Game · $0.99 + sandbox experiments and element interactions 25+ cheap price for sandbox content 6− free alternatives undermine price 6 94.9%1,199 reviews 28 Gem Defender: Soyjak Survivors (2023) Action · Bullet Hell · Shooter · $3.99 + Fast-paced simple survival action 10+ Funny soyjak-themed presentation 10 94.3%1,256 reviews 29 Sand:box (2023) Sandbox · Pixel Graphics · Simulation · $1.99 + Creative sandbox freedom 41+ Long experimentation and discovery 5 93.9%1,758 reviews 30 Beecarbonize (2023) Strategy · Resource Management · Card Game · Free 93.6%2,165 reviews 31 SPORE (2008) God Game · Open World · Sandbox · $19.99 + creative evolution across varied stages 88− uneven stages and shallow systems 13 92.6%73,065 reviews 32 The Outlast Trials (2024) Horror · Multiplayer · Co-op · $39.99 + fun immersive trial mechanics 66+ fun teamwork-focused co-op 40− generative AI assets 12 92.4%112,471 reviews 33 Machinika: Museum (2021) Puzzle · Mystery · Point & Click · $7.99 + Satisfying puzzle discovery and exploration 54+ Well-balanced challenge level 22− Weak or minimal narrative 7 92.7%6,318 reviews 34 Slipways (2021) Strategy · Puzzle · Turn-Based Strategy · $16.99 92.8%2,311 reviews 35 ΔV: Rings of Saturn (2023) Space · Sci-fi · Physics · $9.99 + Deep physics mining simulation 81+ Meaningful ship upgrades 18− Too difficult to understand 9 92.5%3,474 reviews 36 SpaceChem (2011) Puzzle · Difficult · Programming · $9.99 + Complex logic puzzle design 46+ Demanding cerebral challenges 11− Brutal, overwhelming difficulty 23 92.2%5,100 reviews 37 Star Birds (2025) Early Access · Resource Management · Base-Building · $19.99 + logistics and factory puzzles 45+ Kurzgesagt-style colorful visuals 20− repetitive or cumbersome layouts 9 92.2%3,221 reviews 38 Boson X (2014) Difficult · Action · Arcade · $4.99 + Simple reflex-based running 20+ Difficult but rewarding challenge 15 92.3%1,588 reviews 39 Thrive (2021) Simulation · Science · Sandbox · $4.99 + deep, biologically accurate evolution 62+ active, steadily improving development 14− only early cellular content 16 92.2%1,761 reviews 40 while True: learn() (2019) Programming · Simulation · Education · $12.99 + fun, engaging logic puzzles 60+ satisfying challenge, approachable difficulty 8− confusing mechanics, weak explanations 6 91.3%8,238 reviews 41 Lightmatter (2020) Logic · Indie · Adventure · $19.99 + Light-and-shadow puzzle mechanics 49+ Portal-like humor and engaging stories 15− Shorter than expected 15 91.5%2,907 reviews 42 The Alters (2025) Survival · Base-Building · Management · $34.99 + branching emotional sci-fi narrative 60+ base management and exploration blend 38− repetitive resource-management chores 33 90.2%20,109 reviews 43 Prehistoric Kingdom (2022) Dinosaurs · Management · Simulation · $29.99 + Engaging sandbox with deep customization 76+ Beautifully detailed realistic animal models 19− Frequent path-finding and AI glitches 14 90.2%6,831 reviews 44 WolfQuest: Classic (2025) Simulation · RPG · Survival · $29.99 + Simple wolf survival gameplay 24+ Accessible, simple challenge 7− Glitches and broken account features 12 90.8%1,669 reviews 45 Cell to Singularity - Evolution Never Ends (2021) Clicker · Free to Play · Simulation · Free + educational, relaxing idle-clicker gameplay 71+ abundant content lasting countless hours 5− slow, grindy, time-gated unlocks 14 89.3%28,195 reviews 46 Little Rocket Lab (2025) RPG · Automation · Building · $19.99 + Charming, emotionally moving stories 12+ Factory building and resource automation 10− Restrictive automation and day cycles 6 90.6%1,339 reviews 47 STEINS;GATE ELITE (2019) Visual Novel · Anime · Time Travel · $59.99 90.2%1,688 reviews 48 Juno: New Origins (2023) Building · Science · Space Sim · $19.99 + realistic physics and customization 70+ runs well on weak hardware 9− steep learning curve 14 89.1%3,553 reviews 49 Tesla vs Lovecraft (2018) Top-Down Shooter · Lovecraftian · Arena Shooter · $14.99 + Satisfying twin-stick shooting 39+ Fair, escalating challenge 9− RNG-driven brutal difficulty 13 89.7%1,238 reviews 50 The Sapling (2019) Life Sim · Sandbox · Science · $17.99 + Fun evolution sandbox 53− Frequent crashes and glitches 15 89.0%2,007 reviews