WHAT IS EVILPEEK?

An "Evil Peek" in CS2 refers to a type of aggressive shoulder peeking that abuses the game’s updated tick rate system (sub-tick movement) to gain a significant timing advantage over an opponent holding an angle.

Here’s a quick breakdown:
"Peeking" is when a player quickly exposes themselves around a corner to check for enemies.

The “Evil Peek” is timed and executed in such a way that the peeker sees the opponent before the opponent sees the peeker—or has time to react.

In CS2, the sub-tick system (a major change from CS:GO's 64/128 tick) allows smoother and more responsive movement, but also introduces inconsistencies in when players appear on each other’s screens during fast peeks.

Players using this peek can abuse latency and sub-tick interpolation to effectively pre-fire or one-shot an unsuspecting opponent before they even appear properly on the opponent’s screen.

Why it's controversial:
Many players feel it's unfair or broken, especially when used with high movement speed (like crouch-unpeek or jump-peek hybrids).

It’s often discussed in relation to CS2’s netcode and hit registration, especially in pro matches or high-level ranked games.

In short: EVILPEEKing (♛) entails a jump-peek hybrid that bait return fire while triggering sub-tick desync enabling sheer competitive gain.