Reddoor

Reddoor is a solo survival game set in a post-apocalyptic world overrun by zombies. You survive endless rounds by opening and clearing special RED DOORS, killing the undead and spending points on guns, perks, new areas and power. The game ends when you die.

Fight through the rounds

Zombies enter your space through RED DOORS. Killing them earns points, while zombies can also randomly drop scrap. You spend points on purchases and use scrap for ammunition or specific upgrades and purchases. As the waves grow more challenging, upgrading weapons and managing ammunition become important to surviving.

You can upgrade guns at the upgrade station and improve their rarity at the rarity station. The mystery box generates a random weapon when purchased; it contains 40 weapons across five rarities. The weapon you receive can change how you approach the fight. You can also customize weapon skins, with over 200 skins dropping randomly as you level up.

Power-ups

Zombies may drop power-ups when they die. The 10 types are:

• Max Ammo: refill all ammunition.
• Nuke: instantly kill all zombies on the map.
• Shadow: grant temporary invisibility.
• Resupply: provide a full resupply of grenades.
• Time Skip: advance a round.
• Rapid Fire: temporarily increase firing rate.
• Instakill: make all shots instant kills for a duration.
• Vampyrism: restore health by killing zombies.
• 2x Points: double points earned for a duration.
• Sale: temporarily reduce the cost of items.

Maps and modes

The game has six maps: ENIGMA, DEMO, REDFALL RETREAT, REDFALL, STALK and ARTEMIS. It also has five modes:

• Survivor: standard survival mode.
• Gungame: progress through a series of weapons.
• Timed: survive with a timer.
• Speed+: face faster zombies.
• Chaos: start at round 10 with 25,000 points, but face twice as many zombies.

Perks and equipment

There are 11 perks and five types of grenade. The perks are Life, which grants a second life; Health, which improves overall health; Reload, which reduces reload time; Agility, which increases movement speed; Spread, which affects weapon spread; Damage, which increases weapon damage; Blast, which provides explosive resistance; Trigger, which increases firing rate and makes single-fire and burst weapons automatic; Magnet, which attracts nearby scrap and power-ups; Vision, which highlights enemies; and Frenzy, which increases melee damage and reach.

Grenades include the Standard Grenade, a basic explosive; the Impact Grenade, which explodes on impact; the Distract Grenade, which draws zombies to a location; the Frost Grenade, which freezes zombies in an area; and the Fire Grenade, which deals fire damage over time to zombies in an area.

Hidden discoveries

Easter eggs are scattered throughout the map. Finding and activating them can reveal special abilities or secret weapons.