The appropriately-titled Waterloo is a Roblox campaign based in the early 1800s, around the Napoleonic Wars. Per the official description, it's "a 1,000 man battle fought on a 10,240 x 8,192 studs ...

Top Roblox military games allow players to relax and practice their aim. On this platform, they can play all kinds of titles, including those with a military or battle theme.