Instanced MMORPG
Guildwars Trilogy Steam page.
Even if Guild Wars 1 and its add-ons are quite old it's still around and has active players and guilds.
The following applies to all three installments of the first Guild Wars:
Guild Wars
Guild Wars: Nightfall
Guild Wars: Factions
Guild Wars: Eye of the North.
Can be played with mouse only.
Fullscreen or windowed.
Controls are fully customizable.
Design[]
Energy is shown in red, Mana in blue, Skillpoints in green.
GUI can be positioned wherever you like. It can be resized, too.
Important Notice[]
While Guild Wars 2 has similar accessibility, its click to move capabilities have been changed to the worse. Actually, they have been removed completely.