Paradox games work off a weird quasi-MMO model where they release a base game and then continue to actively support it for a decade by pumping out expansions and content packs. The upside is that a game you bought in 2015 still feels fresh and exciting, the downside is that you if you start playing in 2023 instead of 2015 you have to drop like $200 to have a proper game.
Victoria 2 has 10, but Stellaris has 21. So expect a lot.
Jesus Christ
Paradox games work off a weird quasi-MMO model where they release a base game and then continue to actively support it for a decade by pumping out expansions and content packs. The upside is that a game you bought in 2015 still feels fresh and exciting, the downside is that you if you start playing in 2023 instead of 2015 you have to drop like $200 to have a proper game.