In terms of game file size, you will need at least 5 GB of free disk space available. An Intel Core i3-530 CPU is required at a minimum to run 24 HOURS. However, the developers recommend a CPU greater or equal to an Intel Core i5-650 to play the game. The cheapest graphics card you can play it on is an NVIDIA GeForce GT 730. The minimum memory requirement for 24 HOURS is 6 GB of RAM installed in your computer. Additionally, the game developers recommend somewhere around 8 GB of RAM in your system.
24 HOURS will run on PC system with Windows 7 64 bit and upwards.