How to play Sidus?

Excuse me, could you please elaborate on how one might go about playing Sidus? I'm a bit unfamiliar with the specifics of the game and would appreciate a step-by-step guide on how to get started. Is it a game that requires a specific platform or software to play? Are there any prerequisites or initial investments needed? Additionally, could you provide some insight into the mechanics of the game and what makes it unique compared to other similar games in the market? Thank you in advance for your help.