Kerbal Space Program vs Spaceflight Simulator
Which one is worth buying now, with today's prices and each game's recommendation.
Kerbal Space Program wins 11 of 14 head-to-head metrics. Kerbal Space Program is $8.00 cheaper.
Metric by metric
The winner of each row gets a ✓. No row weighs more than another; the recommendation is calculated separately.
| Metric | Kerbal Space Program | Spaceflight Simulator |
|---|---|---|
| GameValio scoreRecommendation: Worth It × Maybe | 77 | 57 |
| Quality | 94 | 78 |
| Value | 78 | 44 |
| Popularity | 42 | 32 |
| Current Best Price (USD) | $6.99 | $14.99 |
| Steam Review Score | 95.8% positive | 96.8% positive |
| Average Concurrent Players (14 days) | 3.0K | 127 |
Where to buy
The 3 cheapest stores for each game
Kerbal Space Program
Loaded Cheapest Authorized reseller$6.99−83%Buy 
GAMIVO Key marketplace$7.57−81%Buy 
Kinguin Key marketplace$7.58−81%Buy Spaceflight Simulator
Side by side over time
Kerbal Space ProgramSpaceflight Simulator
Details and requirements
| Item | Kerbal Space Program | Spaceflight Simulator |
|---|---|---|
| Release date | April 27, 2015 | February 17, 2022 |
| Developers | Squad | Team Curiosity ✦ |
| Publishers | Private Division | Team Curiosity ✦ |
| Platforms | Linux, Windows, MacOs | Windows, MacOs |
| OS (minimum) | Windows 10 64-bit | Windows 7 or Newer |
| Processor (minimum) | Core i5 | 2.5+ GHz Quad core |
| Memory (minimum) | 8 GB RAM | 4 GB RAM |
| Graphics (minimum) | DX10 (SM 4.0) capable, 1GB VRAM | NVIDIA GTX 660 or Better, ATI 7950 or Better |
| Hard Drive (minimum) | 4 GB HD space | — |
| Storage (minimum) | — | 1 GB available space |
Frequently asked questions
Which is better: Kerbal Space Program or Spaceflight Simulator?
Kerbal Space Program won the comparison against Spaceflight Simulator based on the head-to-head metric breakdown. Check the metrics table above for a full side-by-side analysis.
How is the comparison calculated?
The comparison winner is determined objectively by counting which game wins more individual metrics in the head-to-head table. No weighting is applied. The GameValio Recommendation shown separately is our own suggestion for each game, based on a weighted score that combines quality (reviews), popularity (player counts), and affordability (price vs value) into a score out of 100. These are two different things: the comparison is objective, the recommendation is GameValio's opinion.
Is Kerbal Space Program worth buying over Spaceflight Simulator?
Based on the metrics, Kerbal Space Program won the direct comparison. However, also check the GameValio Recommendation for each game and the price comparison table to make the most informed purchase decision.
Which game has better player reviews?
Review score trends and volume over time are shown in the charts section above. The game with consistently higher positive ratios has stronger community reception.
Which game offers better value for money?
The affordability score and price comparison table above highlight the best deals. Kerbal Space Program currently scores better on value relative to its quality and price.
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Analysis updated: Oct 24, 2026, 11:31 AM UTC