DOOM Defense

Demons march through DOOM's own levels, rebuilt as tracks, while you build and upgrade marines and supply depots from an overhead view. Everything you see and hear comes from your own copy of DOOM + DOOM II, including the Legacy of Rust monsters.

Maps from DOOM: E1M1: Hangar and E1M2: Nuclear Plant, rebuilt room by room, plus the original Nukage Run track. Walls block your towers' sight, shots and light; E1M2's pitch-dark maze needs towers with camo vision and their flashlights. Every DOOM map hides 2–4 secrets.

Three difficulties: I'm Too Young To Die (40 rounds), Hurt Me Plenty (60) and Ultra-Violence (80, ending with the Spider Mastermind). Win a map to earn its chevron badge on the level select.

Six towers, three upgrade paths of five tiers each, BTD6-style: take one path to tier 5, a second to tier 2.

• Pistol Marine: shotguns, chainguns or armor-piercing marksman rounds.
• Rocket Marine: splash damage, rapid launchers or boss-busting warheads.
• Plasma Marine: bolts in every direction.
• BFG Sentinel: hits anything it can see, anywhere on the map.
• Nukage Sprayer: slows demons and burns them with acid.
• UAC Supply Depot: drops supply packs every round, collects them itself, pays interest or boosts nearby towers.

16 demon types that split like layered bloons, from Zombiemen to the Cyberdemon, the Tyrant and the Spider Mastermind. Ghouls ignore slows, Banshees scream demons into a sprint, Arch-Viles raise the dead and Mindweavers shield their escorts.

The Demonac: an in-game almanac with every tower, upgrade, demon and wave, with exact numbers.

A DOOM status bar, a boss health bar with animated portraits and a boss queue, a live wave panel, fast-forward, targeting modes, lifetime stats and a DOOM screen melt on restart.

Requires DOOM + DOOM II (the 2024 release: Legacy of Rust monsters, and DOOM 1's music on the E1 maps; without it they use DOOM II stand-ins and tracks). Melty installs GZDoom for you.

What's new in 1.2

• New maps from DOOM: E1M1: Hangar and E1M2: Nuclear Plant, with their own music and secrets (2 each). Nukage Run moves to Extras.
• Main menu in classic DOOM style with its own music, a level select with a CRT monitor per map (track preview and badges), a difficulty picker and lifetime stats.
• Difficulties are now I'm Too Young To Die, Hurt Me Plenty and Ultra-Violence; earn a badge per map and difficulty.
• Walls are solid: they block towers' sight, shots and light. Red zones on the range circle show what a tower can't see.
• Dark zones: E1M2's maze is pitch dark; only towers with camo vision can shoot there, lit by their flashlights.
• Secrets: click a wall that looks off or place the right tower in the right spot for free towers, lives and cash.
• DOOM status bar: cash, lives as health with Doomguy's face, towers, round, keycards for secrets and wave counters.
• Live wave panel: walking portraits of the next wave; during a wave, true counts of what's left (splits included).
• Towers renamed: Pistol Marine, Rocket Marine, Plasma Marine. Number keys 1–9 and 0 buy towers; the tower list pages five at a time.
• Terminal-style sidebar, options and end screen.