Onset
Onset is an open world Lua scripting sandbox without predefined goals. Choose from hundreds of Lua functions from our Developer Wiki to create your own scripts and gamemodes. Onset is a perfect starting point for beginners interested in learning how to program.
Offers
What are keyshops?About Onset
Key features:
- Over 400 Lua functions to customize the world.
- Spawn cars, helicopters, NPCs, objects and more with Lua functions.
- Load custom maps.
- Singleplayer (localhost) and multiplayer.
- 300 player dedicated multiplayer servers. You can host your own server with your scripts.
- Import characters, animations, props, sounds, particles and more.
- Various types of vehicles with damage model.
- Weapon modding including configuration like damage.
- UI customization with HTML/CSS/JS.
- High quality in-game VoIP solution.
What can I do in Onset?
By default the map in Onset is completely empty. The Onset Developer Wiki holds a list of all Lua functions including descriptions on how to use them. With those functions you can write your own game mode scripts that either run on the server or game client. This way you have endless possibilities to realize your idea in Onset.
Game details
Game details
Third-party account: None
Age ratings
Game modes
Onset price history
Lowest tracked price: $18.99 (Jul 7, 2026) · current best: $18.99.
Onset player count & reviews
67% positive reviews all-time · 0 peak players in the last 30 days.
Onset — frequently asked questions
Where can I buy Onset at the cheapest price?
Right now the cheapest offer for Onset is $18.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price Onset has ever been?
The lowest price KingsPrice has tracked for Onset is $18.99 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How many people play Onset?
Onset peaked at 0 concurrent players on Steam in the last 30 days (highest on Jul 7, 2026). The player chart on this page updates daily.
How can I get Onset at a discount?
Create a free price alert on this page and KingsPrice will email you when Onset drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
Minimum
- Requires a 64-bit processor and operating system
- OS *: Windows 7 64-bit
- Processor: Intel Core i5-2300
- Memory: 4 GB RAM
- Graphics: GeForce GTX 660 2GB
- DirectX: Version 11
- Network: Broadband Internet connection
- Storage: 20 GB available space
- Additional Notes: SSD storage recommended
Recommended
- Requires a 64-bit processor and operating system
- OS: Windows 10 64-bit
- Processor: Intel Core i5-6400
- Memory: 8 GB RAM
- Graphics: GeForce GTX 960 4GB
- DirectX: Version 11
- Network: Broadband Internet connection
- Storage: 25 GB available space
- Additional Notes: SSD storage recommended
