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coin-op conversionconstruction setdungeon crawlerincludes mini-gamesturn basedunusual box contentamerican civil waranime, mangaarchaeologyasian, oriental themeaviationbusiness, financecartoonishceltic themecold warcrime and mysterycyberpunkDungeons & Dragonsdystopiaegyptian themeerotic, adultespionage, spiesfantasygod gamegreek themehistoricalhorror, gothhumorousluxury carsmagicmain character:animalmain character:femalemartial artsmecha, robotsmedicinemedievalmiddle eastmilitarymusicnorse themeoccult, esoterismon Marsorganized crimepiratespolicepost-apocalypticprehistoryprofessional racingreligionroman themeromancescience fictionseas, oceansSherlock Holmesspace in 20th centuryStar TrekStar Warssuperheroestime travelTolkien, J.R.R.underwaterurban settingvampirismwestern themewinter themeworld warAGI engineasciiBuild engineDOOM enginedynamix dev. systemFreescape engineGoldBox SSIInfocomicsLegend IF interfaceMacVenture gamesSCI engineSCUMM scriptingWolf3D engine

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What is Abandonware?
Abandonware DOS leaves the answer to those who already tried to define abandonware games:

- wikipedia
- mobygames
- computer glossary
- abandonware definition
- whatis.com