Games like Happy Nuclear
If Happy Nuclear is your kind of game, the closest matches are TEEFAX: Cold Case, lily's world XD and Midnight Queue — picked from the ranked list below. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.
Get personalized picks →About Happy Nuclear: Happy Nuclear is an evidence-based investigation game where players act as detectives to prevent a disaster. They analyze interconnected case information on an investigation board, primarily using old CCTV and access logs. Cases link together at the end, and each replay introduces changes.
Players who liked Happy Nuclear also play
Steam players who put hours into Happy Nuclear also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.
TEEFAX: Cold Case
WHY THIS
Top pick for Happy Nuclear fans by collaborative filtering across millions of Steam libraries. Shares Indie with Happy Nuclear.
Unravel a cold case after an old laptop containing the photos of a long unidentified victim and a strange app called "The Door" is found in an abandoned house. The police reckon it may be a cipher of some sort, but after unsuccessful attempts at decoding it, they turn to the public.
lily's world XD
WHY THIS
Second-strongest match for Happy Nuclear fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with Happy Nuclear.
Lily was an ordinary teenager in 2004, and you just found her laptop. Read her diary, message her friends, and piece together what happened to her before it’s too late. But you're not the only one with access to her computer… A fourth wall-breaking psychological horror experience featuring LilyPichu
Midnight Queue
WHY THIS
Third-strongest match for Happy Nuclear fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with Happy Nuclear.
Vampires infiltrate the nightclub queue. You are the bouncer. Check documents, observe suspicious behavior, and use tools to decide who gets in and who stays outside, but the final decision is always yours.
The Operator
WHY THIS
Ranked #4 for Happy Nuclear fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with Happy Nuclear.
Welcome to the FDI. As our newest Operator, your role is to use your detective skills to assist our field agents and investigate mysterious crimes. Use cutting-edge FDI software to dig for clues, solve puzzles, and uncover the truth.
Greyhat - A Digital Detective Adventure
WHY THIS
Ranked #5 for Happy Nuclear fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with Happy Nuclear.
How far would you go to save your daughter? As an infamous hacker-for-hire you have the skills to steal almost any secret. But when your daughter is taken, will you be able to use these skills to uncover a dark conspiracy that goes further than you could ever imagine?
Telling Lies
WHY THIS
Ranked #6 for Happy Nuclear fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with Happy Nuclear.
Four private lives. One big lie. Search through secretly recorded video conversations to discover the truth. The successor to the acclaimed Her Story.
Malware
WHY THIS
Ranked #7 for Happy Nuclear fans by collaborative filtering across millions of Steam libraries. Shares Indie and Simulation with Happy Nuclear.
Malware lurks where you least expect it. Unscrupulous software vendors have hidden traps inside legitimate installers — can you spot them all and keep your computer clean?
Family Mysteries 3: Criminal Mindset
WHY THIS
Ranked #8 for Happy Nuclear fans by collaborative filtering across millions of Steam libraries. Shares Casual with Happy Nuclear.
Take on a role of a famous scientist drawn into a dangerous game, where the goal is to save the mankind and uncover family secret. Get ready for a pulse-pounding adventure in the world of experiments, mysteries and espionage!
Cheaper alternatives
Games in the same vein priced at least 40% below Happy Nuclear at current Steam store prices.
POSTAL 2
WHY THIS
Priced ~80% under Happy Nuclear on Steam right now. Shares Indie with Happy Nuclear.
Live a week in the life of "The POSTAL Dude"; a hapless everyman just trying to check off some chores. Buying milk, returning an overdue library book, getting Gary Coleman's autograph, what could possibly go wrong?
The Test
WHY THIS
Priced ~60% under Happy Nuclear on Steam right now. Shares Indie and Simulation with Happy Nuclear.
You will answer a series of questions that will reveal truths from deep within. These questions may make you uncomfortable, but with great knowledge comes great sacrifice. Can you make it all the way through The Test, and if you do, are you sure you want the answers you seek?
Milk inside a bag of milk inside a bag of milk
WHY THIS
Priced ~70% under Happy Nuclear on Steam right now. Shares Indie with Happy Nuclear.
A short story about what sort of challenges everyday little things can be. Help the girl buy milk, be the first not to disappoint her.
Blood and Bacon
WHY THIS
Priced ~80% under Happy Nuclear on Steam right now. Shares Casual with Happy Nuclear.
This Co-op Shooter , has Day and Night levels, multiple maps, players will take on 25 enemy types and numerous bosses, like Gargantuan Monsters and Minibosses every 10 days as you explore, shoot and run for your life against the onslaught of porcine monstrosities.
Placid Plastic Duck Simulator
WHY THIS
Priced ~60% under Happy Nuclear on Steam right now. Shares Simulation and Casual with Happy Nuclear.
The ultimate high-tech rubber duck simulation, Placid Plastic Duck brings you dangerous levels of relaxation. With chill music, dreamy 3D graphics, and many different happy ducks, your only priority is to float around. Zero Ducks given.
Peggle Deluxe
WHY THIS
Priced ~80% under Happy Nuclear on Steam right now. Shares Casual with Happy Nuclear.
Take your best shot with energizing arcade fun! Aim, shoot, clear the orange pegs, then sit back and cheer as 10 whimsical teachers guide you to Peggle greatness.
shapez
WHY THIS
Priced ~80% under Happy Nuclear on Steam right now. Shares Indie and Simulation with Happy Nuclear.
shapez is an easy-going, minimalistic factory building game about the automation of shapes through extraction and satisfying production lines. Adapt to increasingly complex shapes and grow your factory across an infinitely expanding map. Your only limitation is your creativity!
The Test: Hypothesis Rising
WHY THIS
Priced ~60% under Happy Nuclear on Steam right now. Shares Indie and Simulation with Happy Nuclear.
The second chapter in The Test trilogy. Answer a series of in-depth questions to reveal hidden truths about yourself and unlock secrets to discover how your life can change drastically with just a few, slight modifications. ...But are you sure you want the answers you seek?
Free alternatives
Free-to-play games that recommended players of this title also tend to enjoy.
Life is Strange - Episode 1
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it.
Episode 1 now FREE! Life is Strange is an award-winning and critically acclaimed episodic adventure game that allows the player to rewind time and affect the past, present and future.
Ultimate Custom Night
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Happy Nuclear.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
Bongo Cat
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Simulation with Happy Nuclear.
Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?
The Murder of Sonic the Hedgehog
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Simulation with Happy Nuclear.
Sonic the Hedgehog...was murdered!? Get to the bottom of the mystery in this brand-new adventure!
Indigo Park: Chapter 1
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Happy Nuclear.
Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.
missed messages.
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Simulation with Happy Nuclear.
‘goth gf’s iPhone’ airdrops you - accept or decline? A love/horror story about life, death, & memes.
Narrow it down
Head-to-head comparisons
More from Hi-Develop
Other recommendable Steam games by Hi-Develop, ranked by review count so the studio's hits land first.
The Killer Pass: Season 1
WHY THIS
Another title from Hi-Develop, the studio behind Happy Nuclear.
The Killer Pass: Season 1 - a tactical soccer game where your decisions lead to victory. Lead Prakaidao through intense matches, position players strategically, and outsmart opponents. From swift counterattacks to breaking defenses, prove yourself as the ultimate playmaker!
Swarm Sweeper
WHY THIS
Another title from Hi-Develop, the studio behind Happy Nuclear. Shares Indie with Happy Nuclear.
In an abandoned space station that is being overrun by aliens, you are assigned a mission to destroy the facility. You'll enjoy wiping out alien swarm and fighting for survival alongside your lovely pug.
Grim-chan's Soul Fight
WHY THIS
Another title from Hi-Develop, the studio behind Happy Nuclear. Shares Casual with Happy Nuclear.
When the grim reaper isn’t just a skeleton, but a super cute girl! Enter a dark fantasy world as Grimchan, who must collect souls to fight against terrifying demons, battling through the minions of the dangerous Demon King for peace."
Frequently asked about Happy Nuclear
- How much does Happy Nuclear cost?
- Happy Nuclear is listed on Steam at 4.99 USD (current store price; Steam sales may reduce this temporarily).
- What games are most similar to Happy Nuclear?
- Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Happy Nuclear are TEEFAX: Cold Case, lily's world XD, Midnight Queue.
- Who developed Happy Nuclear?
- Happy Nuclear was developed by Hi-Develop.
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 Happy Nuclear.
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