1. Blockland: Easy building game. You can build with other players. Needs an average amount of memory, to play. Can have LAG issues. No membership.
A 1 price game.
Blockland: $20.00. Really recommended to play.
2. ROBLOX: Kinda hard of a building game. Can't build with other players, unless you have made a build script.
40% of players have LAG problems. Needs an average amount of memory to play. There is membership.
A monthly price.
ROBLOX: $5.95 per month. Not the best, of recommendation.
LEGO Universe: We have no clue what the building is like. We have no clue that you can build with players. We don't know if there's a LAG problem. There is a monthly fee. Heard that it was going to be a great game.
LEGO Universe: $10.00 per month.