Build towers and learn abilities to defend against swarms of hundreds of on-screen hostile alien creatures. Choose between sets of randomized upgrades that both upgrade you and the alien swarm. From enormous explosions to far-reaching flamethrowers, no two games are the same.
## About This Game
Hundreds of enemies on-screen – Defend against an ever-increasing swarm of
hostile alien creatures. Hundreds upon hundreds of visible enemies marching
upon your base simultaneously.
Build and upgrade towers – Choose from an assortment of towers to build that
fulfill the needs of various situations. Upgrade those towers in different and
unique ways.
Learn and use abilities – Acquire varied types of abilities to create unique
combinations and use at crucial times to turn the tide of the battlefield.
Randomized upgrades – Choose between three sets of upgrades every upgrade
phase. Every set of upgrades consists of positive benefits for you as well as
upgrades for the alien swarm. Use tactical decision-making to create wild
combinations while adapting to evolving strengths of the alien menace.
Campaign mode – On the run in a hostile galaxy and low on resources, play
through a non-invasive story on customized scenarios for each map.
Skirmish mode – Customize any map to match your own desired specifications.
From which enemies are present to speed of upgrades, difficulty can be fine
tuned to how you want it.
| Minimum System Requirements | Recommended System Requirements | |
| CPU | Intel I5 2500k | Intel I5 2500K |
| RAM | 2 GB RAM | 2 GB RAM |
| OS | Windows 7+ 64Bit | Windows 7+ 64Bit |
| Graphics Card | Nvidia GTX 970 | Nvidia GTX 970 |
| HDD Space | 1 GB available space | 1 GB available space |