Star Citizen aims to combine multiple video game genres, including space trading and combat simulator and first-person shooter elements, in a massively multiplayer online game.[11][19]
Alluding to Star Citizen's online universe, Chris Roberts highlights the importance of player-driven content: "It's like a sandbox for everybody, and occasionally you'll sprinkle in little bits of scripted content to give a bit of character, but you're letting a lot of the players generate the intrigue and the drama."[20] The economy system is described as being NPC-driven, however, with players slowly taking over to ensure changes in game population do not disrupt the economy.[21]
Roberts emphasizes his focus on immersion: "The changes in the technology in the industry will allow me to do a much more immersive experience. [...] It's all about that suspension of disbelief."[22]
Star Citizen's space combat utilizes a Newtonian physics model to create tactical choices for the player.[22] Players will complete objectives to gain currency used to buy, repair and upgrade their ships or to purchase items used in trade.[23]
The game's first-person shooter mechanics are reported to be inspired by games such as Rainbow Six, ARMA, Counter-Strike and Killzone.