A The Sims 4: Gameplay Walkthrough Official Trailer released on Friday features gameplay footage and developer commentary from the upcoming installment in the lifestyle simulation series (thanks nin via Joystiq). The clip runs 20 minutes, and features more than 15 minutes of raw gameplay footage, so it's no surprise it took even the Sims nuts at SimsVIP a couple of days to get through the whole thing, but when they did, they discovered the clip includes the revelation that the game will include a premium subscription service. A quick glance at Steam shows that The Sims 3 has no fewer than 19 full-priced DLC packs, so a subscription plan makes sense, but this is apparently not a season pass deal, as much as an early access program. Word is: "The Sims 4 Premium: Save on new packs with early access and exclusive items. Become a Premium Member to get early access to 3 new packs, with exclusive items. Your Sims can throw a spooky costume party, camp in the great outdoors, and toast to the new year in style."