| Overview | Package | Class | Source | Class tree | Glossary | UnrealScript Documentation |
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| Package name | Description | Classes |
|---|---|---|
| Core | 9 | |
| Engine | 1328 | |
| GameFramework | 98 | |
| GFxUI | 17 | |
| GFxUIEditor | 4 | |
| IpDrv | 35 | |
| OnlineSubsystemGameCenter | 2 | |
| OnlineSubsystemPC | 1 | |
| OnlineSubsystemSteamworks | 4 | |
| UDKBase | 120 | |
| UnrealEd | 195 | |
| UTEditor | 2 | |
| UTGame | 411 | |
| UTGameContent | 56 | |
| WinDrv | 2 |
| Overview | Package | Class | Source | Class tree | Glossary | UnrealScript Documentation |
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