KCD won’t fit into 8GB of RAM on PC. It will probably swap a lot or you will have to lower the detail to spare some memory. Please buy at least 16GB :).
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In theory, there is nothing like “you need at least 4 cores”. If you have lesser number of cores, your operating system will serialize the work for you. So the game will run slower, but it will run. In practice, you fine tune the application to the hardware you are targeting. It is always easier to design, write and debug sequential code rather than parallel. So many applications are single threaded. Such applications will not benefit from a many-core CPU at all. Some applications or tasks are easy to write in a parallel/multi-threaded fashion – like a video codec. Such applications will benefit from more cores a lot. KCD is somewhere in between. We have managed to parallelize many tasks (like AI, updates of entities, RPG, …) and some tasks were already parallelized by CryTek (like physics, skeleton updates, audio, …), but there is still a lot of work that is executed sequentially. Currently KCD runs best on a 8 core CPU. If you remove 4 cores it will slow the application almost twice, but if you add 8 it won’t run two times faster (my guess :)
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Zajímavý, to jsem tedy zvědav. Zatím mi 8GB stačilo i u her co brečely že 8GB nestačí (Watch Dogs2, Arkham Knight), ale bylo nutné zvětšit swap file (který mám na SSD).
Doufám že tohle bude podobný případ, jinak by to už opravdu znamenalo výměnu desky/cpu/ram.