I am about to list strategy games. I do not recommend playing them without mouse, even a 10 dollar mouse will work fine. All games below is recommend with all dlc, they are all good.

Command and Conquer Red Alert 3(best game to be introduced to strategy genre)\Red Alert Uprising\Tiberium Wars\Kanes Wrath, Total War Warhammer 3 and 2(also buy 1 but not for playing 1 as 1 is basically dlc for 2 and 3)(use linux native version as it uses vulkan while windows version crashes), Ashes of singularity, Civilization 5 and Beyond Earth and 6, Stellaris, Xcom Enemy Unknown and 2, Starcraft 1 remastered and 2, Supreme Commander 1 and 2, Sins of a Solar Empire, Battlestar Gothic Armada 1 and 2, Riftbreaker, Warhammer 40k Gladius Relics of War, Chicken Invaders 2 3 4 and 5.

Games that are on console but are vastly better on pc due to mods- Fallout 4, Call of Duty Black Ops 3(Zombies mode).