[workethics]

Mindustry is worth a look if you like factorio and tower defense: https://en.wikipedia.org/wiki/Mindustry

Edited to add:

If you like RTS then Beyond All Reason is fantastic: https://en.wikipedia.org/wiki/Beyond_All_Reason

[MarsIronPI]

Oh, I need to get back into playing Mindustry.

Wait, on second thought if I did that I wouldn't get anything done.