| UE3 | UE4 |
|---|---|
| Object,Actor,Pawn,Controller,World,Level,Component,Player等 | 一致 |
| WorldInfo | WorldSetting |
| GameInfo | GameMode(or GameModeBase) |
| GameReplicationInfo | GameState |
| PlayerReplicationInfo | PlayerState |
| - | Character |
| Matinee | Sequencer(有Matinee但是已不更新逐渐在弃置) |
| AnimTree | Animation Blueprint |
| UnrealScript | 一部分并入C++,一部分和Kismet合并成为Blueprint,状态机则由BehaviorTree代替 |
| Kismet | Blueprint,从源代码和蓝图方法来看,很多函数都有Kismet原型 |
| 其他待补充 | - |
总体而言,降低了对程序员的依赖,不写代码来完成一个游戏是完全有可能的。