Supply crates drop on the map from the first wave. Walk close and zombies guard them; hold E for 3 seconds to take one and get gold and XP.
Add or remove bots at any time: hold Tab and click an empty slot. A bot that joins late gets gold and XP, so it can buy gear straight away.
A barricade wall now rings the Core, a circle or a square depending on the seed, with four gates that face the zombie portals.
Destructible crates guard the gates and stand beside the shops. Zombies smash them, and you can shoot or repair them.
The shops are now coloured camping tents, and shops placed out in the wild get their own small fence.
Bots now also spend gold in the Core workshop (not when gold is shared).
New voice lines when a crate's guards appear.
A new **Extreme** difficulty, harder than Hard: more and tougher zombies that hit harder, dearer shops, less gold and a short bleed-out.
Achievements: kills, waves, wins, bosses, crates, revives, building, perfect reloads, levels and more.
Weapon damage: pistol -40%, rifle +20%, bazooka +30%.
Turrets deal less damage, and bot turrets show their owner's name.
You can zoom the camera out 30% further, and you can no longer walk around on the main menu.
The "LEVEL UP!" banner above the perk cards is gone. The XP shop sign is yellow and the Core workshop sign violet.
The menu music was silent in the published game.
Models and sounds showing as errors in the published game.
Grass and flowers flickering when a bot or player joined during a run.
Removed the odd "ding" after a repair finished.
Bots crowding around an ammo box (partly).
The desert map is removed (forest and jungle remain).