Ah yep, I remember that too. I liked the WWI game.

I used to log in to armorgames.com to play shitty browser flash games occasionally. There was one “mmo” game called Rise of Mythos. It was a deck building collectible card game. I would play it for a few days then forget about it for 6 months. Over time I had a cool deck from years of occasionally logging in, never spent money on it though. Then one day I logged in and it was gone. I would have paid some money to keep it around.