https://archive.org/download/2020_03_22_DOOM/DOOM%20WADs/Ultimate%20Doom%2C%20The.zip
https://archive.org/download/2020_03_22_DOOM/DOOM%20WADs/Doom%20II%20-%20Hell%20on%20Earth%20%28v1.9%29.zip
https://archive.org/download/2020_03_22_DOOM/DOOM%20WADs/Chex%20Quest.zip
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https://archive.org/download/2020_03_22_DOOM/DOOM%20WADs/Chex%20Quest%203%20%28v1.4%29.zip