The Last Outpost is a text adventure game. It will almost certainly look different on your screen than it does here, but the text will be the same!
This was taken from a Linux box. The terminal program is 'rxvt -geometry 80x26 -fn 8x16 -fg white +sb -title "The Last Outpost" -e telnet last-outpost.com 4000'.
The LO web client running in retro fullscreen "Green Terminal" mode. It sure looks a lot like a DEC VT220!
This is the client at Mud Portal.
This is a semi-transparent rxvt shell running on Linux under the KDE window manager. The background image of a forest is showing through.
This is the LO web client running on an Android phone.