Games like Sideral
Below are 16 hand-picked alternatives to Sideral for fans of indie, adventure, ranked by imho.run's hybrid recommender. Each pick is scored on three signals: collaborative filtering across millions of Steam libraries (which players who logged hours in Sideral also play), content overlap on genres, categories, and storefront tags, and review-mined "vibe" embeddings that catch tonal similarity even when the genre label differs. Sections below cover closest matches, reviewer cross-mentions, cheaper alternatives, free-to-play picks. No login required — these picks work anchor-only.
Get personalized picks →About Sideral: Sideral is a game without instructions, without words, first part is to understand what you need to do, then try to solve so many logic puzles. Only you and your mind will be able to discover the misteries of each part of Sideral Islands.... Sideral has been developed by one single person, with love.

Cheaper alternatives
Games in the same vein priced at least 40% below Sideral at current Steam store prices.
POSTAL 2
WHY THIS
Priced ~86% under Sideral on Steam right now. Shares Indie and Adventure with Sideral.
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?
Buckshot Roulette
WHY THIS
Priced ~57% under Sideral on Steam right now. Shares Indie with Sideral.
Play Russian roulette with a 12-gauge shotgun. Four enter. One leaves. Roll the dice with your life. Good luck!
GRIS
WHY THIS
Priced ~46% under Sideral on Steam right now. Shares Indie and Adventure with Sideral.
Gris is a hopeful young girl lost in her own world, dealing with a painful experience in her life. Her journey through sorrow is manifested in her dress, which grants new abilities to better navigate her faded reality.
The Test
WHY THIS
Priced ~72% under Sideral on Steam right now. Shares Indie and Adventure with Sideral.
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 ~79% under Sideral on Steam right now. Shares Indie and Adventure with Sideral.
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 ~86% under Sideral on Steam right now. Shares Adventure with Sideral.
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.
Crypt of the NecroDancer
WHY THIS
Priced ~57% under Sideral on Steam right now. Shares Indie with Sideral.
Crypt of the NecroDancer is an award winning hardcore roguelike rhythm game. Move to the music and deliver beatdowns to the beat! Groove to the epic Danny Baranowsky soundtrack, or select songs from your own MP3 collection!
A Short Hike
WHY THIS
Priced ~43% under Sideral on Steam right now. Shares Indie and Adventure with Sideral.
Hike, climb, and soar through the peaceful mountainside landscapes of Hawk Peak Provincial Park as you make your way to the summit.
Free alternatives
Free-to-play games that recommended players of this title also tend to enjoy.
Indigo Park: Chapter 1
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with Sideral.
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.
Poppy Playtime
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with Sideral.
You must stay alive in this horror/puzzle adventure. Try to survive the vengeful toys waiting for you in the abandoned toy factory. Use your GrabPack to hack electrical circuits or nab anything from afar. Explore the mysterious facility... and don't get caught.
We Were Here
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with Sideral.
Lost in a frozen wasteland and split up from your partner inside an abandoned castle, the only possession you have left is a walkie-talkie with a familiar voice on the other end. Can the two of you find your way out in time?
World of Guns: Gun Disassembly
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Sideral.
World of Guns: Gun Disassembly lets you delve into the inner workings of guns from the largest gears to the smallest screws
Dr. Langeskov, The Tiger, and The Terribly Cursed Emerald: A Whirlwind Heist
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Sideral.
A 15 minute heist game by Crows Crows Crows & Directed by William Pugh (The Stanley Parable). Slip into the soft-soled shoes of the mastermind responsible for the greatest heist- oh god I can’t do this any more, i’m joining the strike. good luck writing the steam description. -tina
When the Darkness comes
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with Sideral.
When the Darkness comes is a walking simulator whose glitchy and dark tale tries to illustrate the hardships of depression and anxiety through a variety of imaginary digital landscapes.
Transmissions: Element 120
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Sideral.
TE120 is a short single player experience set in the Half-Life Universe featuring a gravity defying weapon that allows you to jump buildings and sustain large falls. The story takes place at a mysterious date & location. Where are you? Why have you been sent?
Marie's Room
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with Sideral.
Marie's Room is a short story exploration game about an unconventional friendship between two classmates. You play as Kelsey, remembering Marie's room as it was twenty years ago. But something’s off. What happened to Marie?
Narrow it down
Frequently asked about Sideral
- How much does Sideral cost?
- Sideral is listed on Steam at 6.99 USD (current store price; Steam sales may reduce this temporarily).
- Who developed Sideral?
- Sideral was developed by Armagedoom Games.
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 Sideral.
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