For me, it happened after I installed an update, you have to uninstall the expansion packs then reinstall them, its the only way.
You have to have the Sims 3 base game to play any expansion pack.
No. You need the base game.
Sims 2 is the base game, Double Deluxe is the base with the Nightlife expansion pack included.
It is only compatible if you buy the expansion pack on Steam
Yes you do, the expansion packs won't work without the base game.
No there isn't, the only way to play an expansion pack is to have the base game installed.
No you can't because the whole point of an expansion pack is to improve and add to the same exsisting softwhere. if u put an expansion pack on your computer withot the main game you won't get much out of it and it may struggle to run on your computer without a base to set up.
an expansion pack is a disk which is loaded onto the main disk. you download for instance sims 2 and put in an expansion pack and download it on to it.-- LuLu_95 :An expansion pack, expansion set, or supplement is an addition to an existing role-playing game, tabletop game or video game. These add-ons usually add new game areas, weapons, objects, and/or an extended storyline to a complete and already released game.An expansion pack is an addition to the sims games, in which you get more features, items, abilities and such. You must have the original game to download an expansion pack.
Cities of Tomorrow is an expansion pack for Simcity (2013) and requires the base game for it to work.
Unless you have an expansion pack installed you will need the base game disk in order to play. If you do have an expansion pack any of the disks can be used to play.
Not in the base game, but in the expansion pack called Late Night ya can.
As with any expansion/stuff pack or even the base game itself, your Sims can get pregnant. The type of expansion/stuff pack you have does not affect your Sims ability to become pregnant.