5D Chess typically does not offer a free trial, but it may have a free version with limited features or a demo mode to allow players to experience the game before purchasing.

5D Chess can be played offline, but an internet connection is required for online multiplayer matches and accessing certain features like updates and community content.

You can contact support or send feedback for 5D Chess through the official website or within the app, where you can find options for customer support and community forums.

You can manage or cancel your 5D Chess subscription through the account settings in the app or the platform where you purchased it, following the provided instructions for subscription management.