Gun Up

Gun Up is a survival game set during a zombie outbreak in the city of New Horseon. Using improvised and experimental weapons, you try to survive for as long as possible as enemies spawn continuously around you. Their spawn speed increases with each wave, with no breaks between waves.

Fight through the waves

Kills drop XP gems. When you level up, the game pauses and you choose from several upgrade cards, which can offer weapons, perks, potions and more. You can reroll the cards using rerolls earned through permanent upgrades. Luck adds card choices and improves drops, while Curse makes enemies tougher but awards more XP; Curse also rises on its own every 10 waves.

Choose between two modes: Default lasts 30 minutes, while Quick lasts 10 minutes but includes the same 30 waves. Enemies can drop Max Ammo, Nuke, Magnet and Free XP pickups. Your health regenerates after a few seconds without taking damage, and sprinting uses an energy bar.

Classes and arsenal

Choose one of four classes, each with its own health, energy and speed: SWAT, Thug, Worker or Teddy. The arsenal includes a large batch of guns, melee weapons and utilities, all with new art. You can combine two weapons using a fusion screen that rolls their new stats; certain pairs produce special fusion weapons, and discovered recipes are tracked.

Passive choices can provide automatic grenades, mines, shockwaves or a medic. Other utilities include grenades, claymores, molotovs, monkey bomb, Infinibear, sentry turrets and stim shots.

Enemies and the Butcher

The enemy roster includes Hasty, fat and tanky zombies, the Astro, Hound, Beastmaster, Shrouder, splitters, juggernauts and medics, among others. Many have unique abilities, and enemy health and damage scale with Curse and the number of players.

In the final minute, other enemies disappear and the Butcher enters the fight. He attacks with slams, leaps, bone volleys and ground-zone barrages, later adding a bullet ring. He becomes faster and more dangerous across three phases. Killing him wins the match.

Modes and co-op

Gun Up supports co-op for up to four players. Downed players return as ghosts and respawn next to a teammate after 60 seconds. If the timer runs out, an evacuation helicopter arrives, and everyone must board before the area is nuked.

Progress and results

You earn coins based on damage dealt, with a bonus for killing the Butcher. Spend them on permanent upgrades to base health, base energy, base speed, card rerolls, Luck and Curse. You can also unlock additional weapons and utilities in the Armory. Around 30 new achievements are available, and some unlock Armory items.

The results screen records time survived, wave reached, kills, damage, MVP and coins earned. Online play smooths the movement of remote players and enemies even at low update rates. To accommodate slow connections, the host sends each player only nearby enemies and lowers the update rate when there are too many.