I quote-tweeted about this game earlier on the birdsite, but it's such wholesome fun I thought I should share here — this is Capture the Flag, a once-popular mid-90s shareware DOS game inspired by an overnight boy scouts trip and Sid Meier's Civilization. It's a non-violent and rather-elaborate computer version of the traditional sport, and it has you spend most of your time exploring the map or running across fields and ducking behind rocks, trying to be unseen by the other team(s).

I covered its development and reception in my Shareware Heroes book, along with creator Richard Carr's other excellent games (and the work of many other shareware creators).