I think they'd fit in pretty well.
Protoss in 40k
Ryder Long
Michael Hill
Depends on whether or not their psionics are also linked to the Warp or not. If they're hooked up into the psychic murderfest that is the Warp in the milky way, they're probably going to get buttfucked by daemons.
If not, they will probably do okay. Having faster-than-light travel independent of the Warp would be a huge advantage.
Thomas Morris
They'd be another one of the countless minor xenos civilizations that either escaped notice of the imperium or are a few centuries of backlogged paperwork away from having a serious force directed towards them
On another note, how would their experience against the Zerg help them against the tyranids? Or Orks? The 2 most likely races to come across them.
Elijah Wright
Dark Templar draw psychic power from the Void, which seems like a pretty clear Warp analogue especially when you contemplate it's connection to the Xel'naga. They're pretty daemonic, too, at least as of StarCraft II, but more Order-aligned than Chaos. Warp entities with a different set of priorities, as bad but with fewer random mutations.
Zerg are small time compared to Tyranids but they share enough similarities that Protoss would probably be pretty proficient at fighting them. The big difference is behaviorial, Zerg infest planets to turn into their hives, whereas Tyranids just strip them clean and move on; giant termites vs. giant locusts. Similar tactics, different strategies.
Protoss warrior culture is pretty hardcore, I can see them getting pretty into ork fighting. Probably disdain them as barbarians but appreciate the challenge.
Joshua Jones
The Tau are already in 40k. As are the Eldar.
Luke Fisher
>wanting fewer armies in 40k
And yet Xenos players always cry about the fifteen different flavors of Imperial army.
Adrian Ross
>non-marine players always cry about the fifteen different flavors of Space marine army.
FTFY
Yeah have fun playing with old, outdated kits when Marine get new kit every year.
Henry Martin
in fairness tau get new kits on the regular too
: ^)
Nathan Kelly
Well, I suppose you could have Protoss-flavored Eldars, considering how similar the two are.
Caleb Davis
They wouldn't.
They're too good.
And CUTE