A big stability-and-survival pass: you die less to cheap shots, the swarm plays smarter, co-op holds together, and the menus finally stay out of your way.

Survival

• Brief invulnerability after a hit. Get surrounded and you're no longer deleted the instant a whole swarm piles on — every enemy landing a hit on the same split-second can't stack into an instant death anymore. You get a moment to react.

Enemies & Difficulty

• Smoother early waves. Toned down the brutal early spikes that were ending runs before they got going. The ramp is fairer now — the late game is still out to get you.
• Every enemy shows up on schedule. Fixed waves that could quietly skip an enemy type you were meant to face. If it's supposed to debut, it debuts.
• Turtling isn't safe anymore. Enemies now go after your walls and traps, not just your turrets. Hiding behind a fortress of defenses won't buy you the free time it used to.

Co-op

• More reliable lobbies. Rejoining a game now works, kicking players actually works, and teammates who drop out are cleaned up properly instead of lingering as ghosts.
• Cleaner leave/rejoin. Leaving a game correctly updates your status, so friends aren't staring at a lobby you already walked out of.

Interface

• Redesigned between-wave menu. All four sections — Turrets, Perks, Armory, Shop — are now always-visible tabs instead of a fussy hover popup. Fewer clicks, less hunting.
• Build menu fits every screen. No more overflowing off the edge on smaller or zoomed-in displays.
• Added a reload status indicator to the reticle

Quality of Life

• Alt-tab won't get you killed. Clicking away or switching windows mid-move no longer leaves your character stuck holding a key and wandering into the horde while your back's turned.