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Want to explore Project: Gorgon on more than one character at a time? This is for you! The Extra Character Slots pack lets you have three more characters on your Project: Gorgon account at a time. You can use these "alts" to explore alternate play styles like the fairy race, or to focus on specific crafting skills, or just to hold items for your main character.

Character Slots FAQ

Steam says I already own this DLC, but I don't remember purchasing it?
Players who purchased the classic edition of Project: Gorgon received this DLC automatically. The classic edition came with four character slots instead of just one, so we gave out this DLC so existing players didn't lose any slots.

Can I buy this multiple times? I want more than four slots!
You can only buy the Extra Slots Pack once, giving your account a total of four character slots. But you can get additional character slots by becoming a VIP. VIP members gain an additional 4 slots (which would give you a total of 8 slots if you also have this DLC.)