This is very similar to Upper Story's first product [Turing Tumble](https://upperstory.com/turingtumble/). As one who does lower level computing, I still thoroughly enjoyed Turing Tumble as it was just a different way of exercising the same knowledge base. I think it is also kind of similar to the Zachtronics line of video games like [TIS 100](https://zachtronics.com/tis-100/) or... Source: over 1 year ago

If you are open to learning very basic assembly programming, or have some interest in programming give TIS-100 a look, great simple manual to print out (only ~15 pages). Its cheap at $7 and will remind you of your former Tandy. Source: almost 2 years ago

Well how about I introduce you to... FreeCiv! https://freeciv.org/. - Source: Hacker News / 7 months ago

There are many other commercial projects similar to this (colonist.io landover.io etc). None of them are open source though. This has been done in the past extensively (see freeciv.org, or Terasology, or 0 AD etc). Source: 7 months ago

While many CivFanatics have probably heard of FreeCiv and Civ2Clone, there is also another freely available opensource indie game inspired by Civilization 2 called C-evo! C-evo aims to recreate the classic mid 90s TBS Civ2 like experience, but with more emphasis on a custom military unit designer, extremely powerful/deadly AI, and careful design of the rules, resulting in a true challenge. The game uses similar... Source: 7 months ago

FreeCiv uses its own FOSS engine[0], can keep you occupied for days. [0] http://freeciv.org/. - Source: Hacker News / 8 months ago

The client and server are separate binaries; they are released together on freeciv.org, but Linux distributions put them into different packages. Source: 12 months ago