🖥️ 正當防衛 配備需求
PC 版最低與建議電腦配備（Steam 官方提供）。配備達到「最低需求」可以玩，想要畫面更順、特效開更高，建議參考「建議需求」。
💻 最低需求
- Microsoft Windows® 2000/XP. (Windows® 95/98/ME/NT not supported)
- Pentium IV 1.4GHz (or AMD AthlonXP 1700+ processor or higher).
- 256MB System Memory.
- 3D Hardware Accelerator Card Required - 100% DirectX® 9.0c compatible with 128 MB and Shader model 2.0. (GF FX 5700 or ATI 9500)
- 100% DirectX® 9.0c compatible 16-bit sound card and latest drivers
- 4.0GB of uncompressed free disk space (plus 600MB for Windows® 2000/XP swap file)
- 100% Windows® 2000/XP compatible mouse, keyboard and latest drivers.
- Recommended
- Pentium® IV 2.8GHz with Dual Core Technology (or Athlon 64 series).
- 512MB System Memory.
- 3D Hardware Accelerator Card Required - 100% DirectX® 9.0c compatible with 256 MB and Shader model 2.0. All nVidia® GeForce™ 7 series or higher.
- Sound Blaster® X-Fi series or higher.
- Optimal
- Pentium® D Processor with Dual Core Technology (or Athlon 64 X2 series).
- 1GB System Memory.
- All nVidia® GeForce™ 7800 series or higher.
- Sound Blaster® X-Fi series or higher.
資料來源：Steam 商店頁（2026/10/3 更新）。 遊戲改版後需求可能調整，購買前請以商店頁為準。