A computer-implemented method of providing an environment for a crafting player to craft a role-playing content and/or quests in a computer game, the method including: obtaining tokens that represent in-game assets; placing the tokens to craft the role-playing content and/or quests; inviting other players to participate in the role-playing content and/or quests; running the role-playing content and/or quests; receiving at least one reward based on the rating entered by the other players; and saving a layout and composition of the crafted role-playing content and/or quests in a blueprint. Keywords include MMO, role-playing event, quests, and souvenirs.