Mixed feelings coming in on this title. Here are the BTD minimum system requirements to help you make your mind up.

Blacklight Tango Down Minimum System Requirements

OS: Windows® XP, Vista, or 7
Processor: Dual Core Processor
RAM: 1 GB
Sound Card: DirectX 9.0c compliant sound card
Hard Drive: 2 GB or more
Video Card: ATI x1800+ / Nvidia 6800+