In order for you to play Caravan on Linux with minimal graphics settings, your computer must meet the following requirements
Operating System:
Ubuntu 12.04
Processor (CPU):
2.2 GHz Dual Core CPU
Memory (RAM):
2 GB RAM
Graphics Card:
GeForce 8600 GS, ATI Radeon HD 3600 Series with proprietary drivers!
Storage:
510 MB available space
Sound Card:
Sound Card with Latest Drivers
In order to play Caravan on Linux with maximum graphics settings, you need a computer with a configuration no worse than the following
Operating System:
Ubuntu 14.04
Processor (CPU):
2.7 GHz Dual Core CPU
Memory (RAM):
4 GB RAM
Graphics Card:
GeForce GT 445M, ATI Radeon 6750 or better and with proprietary drivers!
Storage:
510 MB available space
Sound Card:
Sound Card with Latest Drivers