One code provided by user Killawatt is: STAR-N3NH-SKVJ. (As a reference, you need to pay approximately 5 USD for 5000 in-game credit in online shop) You can ask other players to give you their code. This is important, can help you to start more quickly and successfully. When you register your account of Star Citizen, you can input a referral code to gain 5000 in-game credit and additional gifts depending on the ongoing referral program. Referral Code and Referral Program information of Star Citizen are listed in this page.