Celestia
A real-time 3D space simulator and interactive planetarium. Travel to any planet, moon, star, or galaxy and view it from any point in space and time. Accelerate time, land on alien worlds, and expand the universe with community-made add-ons.
0 playing now
1-year peak: 2 (Sep 6, 08:12)
Price history and discounts
Current price: $1.99. All-time low: $1.99 (low recorded on 09/04/2026). Now is the best time to buy — the price matches the all-time low.
We track Steam prices automatically and update them within minutes of any change. The chart shows how the price changed over time and helps you decide whether to buy now or wait for a discount.
Prices in other regions
Brazil
R$7,95
Europe (€)
2,09€
United Kingdom
£1.79
Kazakhstan
660,00₸
Ukraine
52,00₴
Screenshots
System requirements
Minimum
Minimum:
- Requires a 64-bit processor and operating system
- OS *: Windows 7 SP1 / Windows 10 (64-bit)
- Processor: Dual-core 2.0 GHz (Intel Core 2 Duo / AMD equivalent)
- Memory: 2 GB RAM
- Graphics: OpenGL 3.3-capable GPU with 1 GB VRAM (Intel HD 4000 / NVIDIA GeForce GT 430 / AMD Radeon HD 5670 or better)
- Storage: 500 MB available space
- Additional Notes: Internet connection required for Workshop content
Recommended
Recommended:
- Requires a 64-bit processor and operating system
- OS: Windows 11 (64-bit)
- Processor: Quad-core 3.0 GHz (Intel i5-6600K / AMD Ryzen 5 1600 or better)
- Memory: 8 GB RAM
- Graphics: OpenGL 4.x-capable GPU with 2 GB VRAM (NVIDIA GTX 1050 / AMD RX 560 or better)
- Storage: 2 GB available space
- Additional Notes: Internet connection required for Workshop content
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Recent price changes
| Change | When |
|---|---|
| $1.99 | 10 d ago |