In OnAir, you can choose to play in three different worlds, each with its own level of difficulty and gameplay rules.
Worlds determine how realistic and challenging your company management experience will be.
You’re not limited to a single world, every player can create one company per world and switch freely between them at any time.
¶ ☁️ Cumulus (Easy)
Recommended for first-time CEOs.
Cumulus offers the most forgiving rule set, ideal for a relaxed and casual play style.
It includes multiple helper features such as instant teleportation, simplified logistics, and a tutorial with a free starter plane.
💡 Perfect if you only have a few hours to play per week or want to learn the basics without pressure.
¶ 🌤️ Stratus (Intermediate)
Stratus is the next step in difficulty.
You can still use AI pilots to fly while you’re offline, but most assists are disabled.
It’s a balanced world for those who want a mix of realism and flexibility.
⚙️ Recommended for players who want progression and a more authentic company management experience.
¶ ⛈️ Thunder (Hardcore)
Thunder is the ultimate realism mode.
In this world, there are no aids, no payout multipliers, and AI pilots cannot fly without you.
Every single flight must be completed by you personally in a connected simulator.
🚫 No AI-only flights, no minimum rental hours, no shortcuts — just full immersion and authentic aviation operations.
¶ 🎬 Watch the overview
🎥 This short video explains how to choose your world and summarizes the main differences between Cumulus, Stratus, and Thunder.
¶ 📊 Comparison table
| Feature | Cumulus | Stratus | Thunder |
|---|---|---|---|
| AI Pilots may fly alone | ✅ | ✅ | ❌ |
| Instant Transport (Player) | 🟠 | ❌ | ❌ |
| Instant Transport (Employee) | 🟠 | ❌ | ❌ |
| Instant Payload Loading | 🟠 | ❌ | ❌ |
| Unlocked Skills (No Leveling) | 🟠 | ❌ | ❌ |
| Employees can go without rest | 🟠 | ❌ | ❌ |
| Fly at any time of day in simulator | 🟠 | ❌ | ❌ |
| Check ride difficulty | 🟠 | ❌ | ❌ |
| Passengers ignore seat classes | 🟠 | ❌ | ❌ |
| Bonus payout for jobs | 🟠 | ❌ | ❌ |
| Minimum aircraft renting time | 🟠 | ✅ | ❌ |
| Fleet management cost | ❌ | ✅ | ✅ |
| FBO management cost | ❌ | ✅ | ✅ |
| Tutorial and free starter plane | ✅ | ❌ | ❌ |
| VA Member Limit | 10 | 10 | Unlimited |
| Leaderboard | ❌ | ✅ | ✅ |
🟠 = Optional rule, can be enabled or disabled at your discretion.