Expanding Brain

Warhammer

yes

The space marines, which consist of many different legions or groups, the tyranids, other known as bug lookin ahhs, the chaos faction, which is basically modded versions of different factions, the necrons, which are basically robots, the tau, weakest of them all but has the best style, apparently orks, which I thought were in kill team only, and the eldar, which I don’t know anything about.

the eldar are space elves, you forgot the leagues of votann, the imperial knights and (my personal favorite) the astra militarum

also the adeptus mechanicus and sisters of battle