Kerbal Space Program
BANGER · Strategy · 2015
Steam Deck PlayableThe verdict
BUY IT.
A BANGER at $9.99.
- Length
- 113.9h
- Value
- $0.09/hr
- Reviews
- 96% positive
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Minimum on the Steam store: 4 GB of memory, DX10 (SM 4.0) capable, 512MB VRAM, 3 GB of storage. Runs on Windows, macOS, Linux.
In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics.
What drives the score
How to read this
Every input gets a grade, S to D, read from the buyer's side. The score is multiplicative, so an input only counts as raising when it sits near the top of its own scale. Anything with real room left is holding the score back, because that room is the gap to 100. ▲ marks a lift, ▼ a drag or a dock, ? an input we do not have, • a fact this genre's score does not use. The exact weights stay secret.
The value story
It has never been cheaper than $3.99. That was June 2025. 113 discounts in the 13 years on record. They run about 75 percent off, roughly 6 weeks apart. Today's $9.99 at 75 percent off still sits 150 percent above the floor, so a deeper cut exists in its history.
On value it sits in the top 1 percent of its genre. It is pricier than 99 percent of its genre, and better reviewed than 99 percent. The nearest things to it, Kerbal Space Program 2 ($49.99, scores 2) and Spaceflight Simulator ($14.99, scores 63), are both worse buys on this math.
Critics scored it 88. Players sit 8 points higher at 96 percent, which usually means a game that plays better than it reviews.
Of the 800 Steam-purchase reviews this site sampled, 27 come from buyers who refunded the game, sampled from reviews written April 2025 to August 2026. Inside the two-hour refund window, 77 percent of the 3,554 reviews written there were positive, against 96 percent overall, and those are 3 percent of everything written about it.
Finishing takes 113.9 hours; clearing it takes 598, which is 5.3 times the campaign.
11 years after release it still had 1.8K people in it at once.
Players
1,844 players at peak in the last day.
The chart appears once this game has been counted more than once.Player counts via SteamSpy.
What players say
This was one of the first games I played with my dad when I was little. We built a spacestation together and landed on the Mun. I couldn't stop playing, I built bomber planes, satellite networks, rovers with which I explored the space center. Nice memories of a simpler time. If you love slapping random ♥♥♥♥ together and find out what it does, this game is perfect for you.
Amazing, this game is a must have for space enjoyers with lots of times on their hands, you need to actually think about how much your rocket weights, how much fuel you're taking, aerodynamics, even the way you execute manouvers to get from point A to point B. While it isn't in the base game, I HIGHLY recommend using mods to be able to get an even funner experience while playing KSP. Fun: 9/10 Graphics: 5/10 (Can be...
This game is fun. I don't really have anything else to say, it runs well and is a mice chill game. Watch some YouTube videos and you'll be hooked. Coming from SFS, this game has a whole ton more content without purchasing a DLC, and I'm not very good, but it's just so fun. Highly recommend you check it out.
Player reviews from Steam: the most helpful all-time, plus the newest that clear the same quality bar, with the hours each player had put in when they wrote it. The mix of Recommended and Not recommended follows the game's Steam ratio. Rotates daily. Opinions are theirs.
No data upstream: achievement curve (Steam global achievements).
Cite this score
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Kerbal Space Program scores 95/100 on the BANG Score (a BANGER). The BANG Score rates what a game is worth for the money. Via Steam BANGERS. https://steambangers.com/game/220200/kerbal-space-programThe BANG Score is one number for value, 0 to 100: price against how it reviews and how long it was built to be. It answers the money question and stops there; whether the game is for you is still your call.
Reviews set the ceiling and price moves you inside it, so a cheap game that reviews badly cannot climb. Ratings from few reviewers are shrunk toward the middle, so 100 percent from nine people does not outrank 96 percent from ninety thousand. Length comes from HowLongToBeat where it can be matched, measured against a per-genre floor so a five-hour narrative game is judged against other narrative games rather than against a sixty-hour RPG. Where no verified length exists the score says so and carries a dock, because the biggest input is then a guess. The full method, including where it is weak → Steam reviews as of Aug 1, price as of Sep 24.
A number here look wrong? Tell me what it got wrong and I will look at the inputs behind it.