Methods and systems for cross-platform multiplayer session share

A system for processing gameplay invitations, the system including one or more servers for executing online multi-player gaming, comprising:

• a server receiving an indication of a request for a first player device to share gameplay of a game during a session of gameplay with a recipient device;
• and
• the server generating a share link for sending to the recipient device, the share link including embedded metadata that identifies an application identifier for the game and a session identifier for the session of gameplay by the first player device;
• wherein the share link comprises a system type-agnostic universal resource link that is invariant with respect to different system types and different recipients and, when selected on the recipient device, causes presentation of a network-served web user interface that enables input of a selection of a system type from a plurality of heterogeneous system types from which the recipient device is to join the session;
• and
• wherein the server, responsive to the input at the web user interface, redirects to a system type-specific trigger link that that starts a launch invocation of the selected system type and passes the application identifier and the session identifier to initiate gameplay for the recipient device in the session of gameplay.