"Ciphers Game" is a cross-platform educational project prepared as a FPP (first person perspective) game, consisting of four missions. It describes the course of the Polish-Bolshevik war and the influence of Polish cryptology on its victorious final. The project was created with the widest possible digital distribution in mind. In addition to the version for PCs and VR goggles, a game port for Android and iOS mobile devices was also created. In the mobile version, the mechanics, controls and graphic settings have been adjusted to the capabilities of smartphones. Each version of the game offers a slightly different type of experience, from the most immersive VR to a simplified but widely available mobile version.