The shareware version, titled A Grave Overture, contains three unique levels not found in the full game.
Also known as Keen 4: Secret of the Oracle
Platform, 1991
Shareware (installed), Shareware, Shareware, FAQ, FAQ
Dev: | id Software |
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Pub: | Apogee Software |
Also known as Halloween Harry
Platform, 1993
Full version, Extra
Dev: | Interactive Binary Illusions, SubZero Software |
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Pub: | Apogee Software |
Also known as Alladin, Alladdin
Platform, 1994
Playable demo (installed), Playable demo
Dev: | Virgin Interactive Entertainment |
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Pub: | Walt Disney Computer Software |