• Register

GLaDOS, the menacing AI from Valve’s awesome Portal franchise, guest stars and shakes up the Defense Grid world. Players will battle not only alien hordes, but the deviousness of GLaDOS as she tests the player’s skills and changes all of the rules that you have come to know. Can you protect the cores in spite of her intrusive testing?

NOT available on IndieDB

The game you are trying to view is not yet available on IndieDB. If this is your project and you would like to release it on IndieDB, please contact us with the details. View Defense Grid: You Monster on ModDB.

Continue browsing the game list, to find the profile you are after.

You may also like
Asteroid Outpost

Asteroid Outpost

Tower Defense

Collect power, mine minerals, and defend yourself!

Defense Grid 2

Defense Grid 2

Tower Defense

Setting the bar as the definitive tower defense game, Defense Grid 2 introduces new worlds and threats to test your tower placement strategies. With a...

Hostile Mars

Hostile Mars

Tower Defense

Hostile Mars is a Tower-Defense Factory-Building game. You must create efficient supply chains, salvage destroyed enemies, and upgrade structures to support...

Orbit

Orbit

Tower Defense

Experience Tower Defense Redefined. Orbit is a space-based TD game unlike anything you’ve seen in the genre before. You must protect your planet from...

Eden Rising

Eden Rising

Tower Defense

Brace yourself for a brand new action-packed Open World. Explore a huge world to gather materials for gear and defenses. Use everything at your disposal...

Clean Orbit!

Clean Orbit!

Tower Defense

Clean Orbit! is a 3d tower defense game, where players must run a company, which defends orbiting space stations from being destroyed by asteroids and...

Harvest: Massive Encounter

Harvest: Massive Encounter

Tower Defense

Harvest: Massive Encounter is an award-winning real-time strategy game with battles of epic proportions and a unique style of resource management and...

OTTTD

OTTTD

Tower Defense

We're cramming everything into one RTSTDRPG! It's an Over The Top Tower Defense game for those that are confused :) Follow us on Twitter and Facebook...

2112TD

2112TD

Tower Defense

Get ready for the ULTIMATE tower defense onslaught. Build, deploy, research and upgrade your defences in this epic sci-fi adventure. Set 100 years in...

Towerbots

Towerbots

Tower Defense

This game is a 2d Tower Defense, in a cartoon SF style. You have to destroy the bad robots before they come to your teleporter. For that, you can place...

Defense Grid: The Awakening

Defense Grid: The Awakening

Tower Defense

Defense Grid: The Awakening is the definitive Tower Defense game that’s easy to pick up, engrossing to play, and hard to set down for players of all...

Distant stars

Distant stars

Tower Defense

Distant stars - is tower-defence strategy with flexible upgrade system, smart AI, unique ships on both sides of the conflict.