| Multiplayer limit | 4 |
| Same PC limit | 4 |
| Genre | Action |
| Subgenre | Tower Defense |
| Release | 2011 |
| Online | Yes |
| Offline LAN | Yes |
System requirements from PCGamingWiki
| Windows | ||
|---|---|---|
| Minimum | Recommended | |
| Operating system (OS) | XP | 7 |
| Processor (CPU) | 1 GHz Dual-core | Quad core Intel or AMD Phenom Quad core |
| System memory (RAM) | 1 GB | |
| Hard disk drive (HDD) | 6 GB | |
| Video card (GPU) | ATI Radeon x1300 Nvidia GeForce 6200 256 MB of VRAM | ATI Radeon HD 4350 Nvidia GeForce 100M |
| Controller | Xbox 360 controller | |
| OS X | ||
|---|---|---|
| Minimum | ||
| Operating system (OS) | 10.6.3 | |
| Processor (CPU) | 1.3 GHz Intel | |
| System memory (RAM) | 2 GB | |
| Hard disk drive (HDD) | 6 GB | |
| Video card (GPU) | 256 MB of VRAM OpenGL 2.1 compatible Shader model 3 support |
|
| Linux | ||
|---|---|---|
| Minimum | ||
| Operating system (OS) | Ubuntu 12.04 | |
| Processor (CPU) | 2 GHz | |
| System memory (RAM) | 2 GB | |
| Hard disk drive (HDD) | 6 GB | |
| Video card (GPU) | ATI Radeon HD 2400 NVIDIA GeForce 7600 OpenGL 2.1 compatible |
|