Kerbal Space Program

Kerbal Space Program

BANGER · Strategy · 2015

Steam Deck Playable

The verdict

WAIT.

Winter Sale 2026 Dec 17
cut in 6 of 8 sales

A BANGER today. The Winter Sale opens Dec 17, and it was discounted in 6 of its last 8 seasonal sales; 75% in the Winter Sale 2025.

Today

$39.99BANGER

Typical seasonal cut

$9.9975% offBANGER

Cost per hourS
$0.35/hr
ReviewsS
96% of 148,239
Critics
88 players 8 higher
Genre rank
Top 1% Strategy
Watch this gameOne alert at $9.99 or less.

Time and effort

Main story
113.9h
To 100%
598.1h 5.3x the story

Price and sales

Sales
113 on record
Typical cut
75% off
Steam low
$3.99 June 2025
Sale every
41d last September 2026
Lowest now $11.19 at Fanaticalall-time low $3.99 on IsThereAnyDeal

Players and genre

Online
1,604 now
Recent reviews
98% 30 days
Cheaper than
1% of its genre
Better reviewed
99% of its genre
Price and player charts
The value story

The value story

113 discounts in the 13 years on record, a median of 75 percent off across all of them, roughly 6 weeks apart. Today it is at full price, and its last discount ended about 4 weeks ago.

Its score 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.

More about Kerbal Space Program

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.

148,239 people have reviewed it, which is a big enough crowd to settle the number.

Buy now or wait

Buy now or wait

Last discount ended 31 days ago.

Sources: IsThereAnyDeal, Valve.

What drives the score

Grades: S best, D weakest

S is the best grade and D the weakest, judged as a buyer. ▲ raises the score, ▼ lowers it, ? is an input we do not have, • is a fact this genre's score does not use. How the grades work

Raising the score
Cost per hour$0.35/hr
Price per hour of game. It moves the score inside the ceiling reviews set
Reviews
Gates the score. Weak reviews cap it, and nothing reaches BANGER without strong ones
Replayability~598h to replay
Co-op and replay time. The value score counts hours well past the 114h main story
MonetizationNone
Checked: no in-game purchases or loot boxes. That earns a small credit unless Steam lists in-app purchases
For context
Refunds27 of 800 reviews
Steam-purchase reviews sampled whose writer refunded the game. Nothing is docked
AI contentNone disclosed
From the developer's own Steam disclosure. No disclosure is not proof of none, so it does not move the score

What players say

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.
yeetthemtospace3Recommendedafter 8.2h7 found this helpfulRead on Steam
2 more reviews
I'm not even overstating right now, one of if not the best game I've played ever, a kind of game that will make you sit for 2 hours and after successfully completing a mission lean against your chair with your hands wrapped around your head with the kind of feeling you get after watching a 2 hours film with an insane ending, if you love orbital mechanics, spaceships, satelites and space in general this game is...
GGERRecommendedafter 116h18 found this helpfulRead on Steam
Sent Jeb into sun orbit. Sent out a rescue mission. Goes wrong. Jeb is on track to intercept the sun sometime next week
CheesyEnd101Recommendedafter 171h10 found this helpfulRead on Steam

Steam reviews, mixed to its ratio and rotated daily. Opinions are theirs.

About the game

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.
Description from the Steam store page.
Minimum specs

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.

No data upstream: achievement curve (Steam global achievements).

Cite this score

BANG Score badge
Kerbal Space Program scores 95/100 on the BANG Score (a BANGER) as of Nov 8, 2026. The BANG Score rates what a game is worth for the money. Via Steam BANGERS. https://steambangers.com/game/220200/kerbal-space-program
Embed the live badge

Reviews set the ceiling, and price against real length moves the BANG Score inside it. How it works, and where it is weak → Steam reviews as of Oct 31, price as of Nov 7. A number here look wrong? Tell me and I will check the inputs.

Critics vs players+8
Critics88
Players96
Metacritic critics · 148,239 Steam player reviews

Details

DeveloperSquad
PublisherPrivate Division
GenreStrategy
Released2015
Players3.5Mowners, SteamSpy estimate