The provided content for this article consists only of PC Gamer's website navigation, membership promotions and menu links — the actual article text about colony sim development was not included in what was fetched. As a result, there is no substantive article content available to summarise accurately.

I would need the actual body text of the piece (discussing the development challenges of colony sim games such as Dungeon Keeper and Dwarf Fortress) to produce a proper summary. Please re-fetch or paste the full article text so I can summarise it properly.