‘The Sims 3 Late Night’ releasing October 26, 2010 It appears we have a targeted release date for the third expansion pack, The Sims 3 Late Night – October 26, 2010.* The news comes to us by both SimTimes and InfiniteSims in which discovered October 28 and October 26 as the estimated time of arrival.* Seeing how games in the US are usually released on Tuesday (as well as Wednesday or Thursday), it’s a safe bet to say this is true. Here’s a GameStop listing to further prove the point.