OpenTTD VS freeciv

OpenTTD - Open source simulation game based upon Transport Tycoon Deluxe. C++, SDL2

https://github.com/OpenTTD/OpenTTD/pull/11565 for reference.

#6 - OpenTTD - Transport Tycoon Deluxe... with multiplayer.... it has the most Win98 Interface, but once you get past that... this is the best and most amazing free sim tycoon game you will ever find.

OpenTTD is awesome and comes up quite often if you search for "free alternative" in this sub.

OpenTTD is quite similar and free. (Free as in freedom and free as in beer.)

Probably not nearly as complex and a bit different, but: OpenTTD

Not for long: https://github.com/OpenTTD/OpenTTD/pull/10709

Open Transport Tycoon Deluxe https://www.openttd.org/

#4 - Free Civ - Its Civilization 1 and 2, a free clone. You can download the game here; OR play via the online web version... which is my favorite... has a great 2.5 iso view that adds depth.. or join a mega game where 300 or so human players play one turn per day.

Also, a similar question points to FreeCiv: http://www.freeciv.org/

Freeciv

I also played my fair share of FreeCiv, because my second favourite Amiga game was Civilization. ;-)

It's worth-trying if you're interested in seeing what the "4x" genre is about. Probably not Civ 2 on PSX, but you can get Civ: Revolution (Civ "dumbed down" for consoles) on the PS360 generation consoles, Civ: Revolution 2 on mobile (not a bad attempt but really should've stuck on console), Civ 6 on the Nintendo Switch, or FreeCiv on PC and/or mobile if you want a Civ2-experience that isn't stuck on the original Playstation (or hunting down an older DOS/Windows copy). Alternatively, if looking for a Civ5 experience and not on Steam but mobile: There is UnCiv which can be pretty decent for the price (free) and platform (mobile). It won't match Civ6, but it's near "current" based on Civ5.

It's a tough one to recommend for, that fanless system tends to overheat just being on, much less running anything, from all I've read. I'd probably stick with some basics like ADOM, FreeCiv, Battle for Wesnoth, etc. (all three are free by the way). Those games are non-system intensive so shouldn't put too much pressure on it to run them, and turn-based so you don't have to worry about lag. Looking for a bit more action, give the demo for Torchlight a go, see how the system handles it. Should be capable enough but with heat issues it could put a crimp in the play. Similar with Windows (Bedrock) edition Minecraft, give the free trial a go and see what's what. Fez, Bastion, Braid, Baldur's Gate 1 & 2, Beyond Good & Evil, Commandos 2+3, Deus Ex, Elder Scrolls III: Morrowind, Empire Earth, Europa Universalis II, Fallout 1/2/Tactics, Fate, FlatOut 2, Gothic 2, Ground Control, Hearts of Iron, Hitman 3: Contracts, Homeworld (the classic version, comes with the remastered), IL-2 Sturmovik, Jagged Alliance 2, Machinarium, Majesty, Medal of Honor: Allied Assault, Mount & Blade, Oddworld: Abe's Exoddus, Planescape: Torment, Praetorians, Prince of Persia: The Sands of Time, Quake 1-3, Rayman 2, Return to Castle Wolfenstein, Shadow Warrior Classic, Sid Meier’s Civilization III (or give Freeciv a go instead), Silent Storm, SimCity 4 Deluxe, Soldier of Fortune II: Double Helix, Starcraft (original, it's the free one), System Shock 2, The Curse of Monkey Island, The Settlers IV, Theme Hospital, Thief, Thief 2, Tom Clancy's Rainbow Six, Tom Clancy's Splinter Cell, Tomb Raider II, should run on that.

Freeciv is well, free : https://www.freeciv.org