Guess which two games this is a crossover for ???
Most of the work done was using MSPaint.exe (do they even still have that on Windows 8?) with a little blur fixing in Photoshop.
I saw the picture in one game and said Hey I can do all of the letters for the second with minimal block cut-paste and some minor fixing (struts and flare rematching).
Actually I have had an Idea for MMORPG where Players create assets for expanding the game (submitted to company and heavily vetted). Tools/plugins (many probably created by players) could greatly ease the task for less able players (a Neon Sign Tool which creates full game assets for example -- as Neon was a particularly important visual feature of the genres both of these popular games had)
I realize there are too many advancements and expectation (that MMORPG's design) for it to happen anytime soon (risk adverse and rut game companies have been in ).