good not too expensive computer for days standalone

dayz see http://www.game-debate.com/games/index.php?g_id=4843&game=DayZ - not very demanding.

Got a budget?

Try -

CPU: Intel Pentium G3258 3.2GHz Dual-Core Processor ($68.98 @ OutletPC)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($28.75 @ OutletPC)
Motherboard: ASRock Z97 Anniversary ATX LGA1150 Motherboard ($84.99 @ Micro Center)
Memory: G.Skill Ares Series 8GB (2 x 4GB) DDR3-1866 Memory ($72.98 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($48.88 @ OutletPC)
Video Card: Gigabyte Radeon R7 260X 2GB WINDFORCE Video Card ($129.99 @ Newegg)
Case: Corsair Graphite Series 230T Black ATX Mid Tower Case ($59.99 @ Newegg)
Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply ($52.99 @ Newegg)
Total: $547.55