Ahead of the city builder’s release on October 24, the devs want to “manage expectations on performance.”
Given that Paradox has near decade-long lifecycles for their games the launch window is utterly meaningless. Hell, Europa Universalis IV had an expansion released earlier this year and it was released in 2013.
Of singleplayer games, it may be Quake. This one was created before the recent remaster and compatible with different engines.
In honor of Quake’s 20th anniversary, MachineGames, an internal development studio of ZeniMax Media, who are the current owners of the Quake IP, released online a new expansion pack for free, called Episode 5: Dimension of the Past.
Episode 6: Dimension of the Machine was released in 2021. Quake was released in 1996, making it 25 years.
I have a feeling there’s probably some obscure-ass Nethack clone that’s been getting regular updates since the creator first programmed it on a PDP/11 but outside of that I can’t think of any actual commercial products that have received expansions that long after.
Sigil doesn’t count, but it should.
That game had the unfortunate timing of being released when everyone knew CK3 was around the corner. It ended up being seen as a stopgap release and that just got worse when CK3 came out. It got a couple of DLCs but the players just weren’t there anymore. It has some good ideas.