A split level is a corridor with an upper and a lower section. Characters on the upper section can attack characters on the lower level. Players can chose the upper or lower route, or switch between them.
Increases tempo, allows for different strategies
If the corridor is narrow, the upper section could be a gallery. Using one section to avoid enemy NPCs in the other section makes it a type of flanking route.
|There is a split level in the “Lowlife” level of Half-Life 2: Episode 1. The player is moving through a large open area with elevated passageways. The player must switch back and forth between the two paths to avoid the most powerful enemy NPCs.|
|In the level “Sierra 117” of Halo 3, an arena section also contains a split level element where enemies can attack the player.|
|The Halo 3 level “Crow’s Nest” features a long split level section. The player may stay on the upper level and engage enemies on the lower level, or use the lower section and engage them directly.|