The best Adventure Game alternative to RPG Maker is GB Studio, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to RPG Maker and three of them are Adventure Games so hopefully you can find a suitable replacement. Other interesting Adventure Game alternatives to RPG Maker are Adventure Game Studio and Visionaire Studio.
A quick and easy to use drag and drop retro game creator for your favourite handheld video game system.
Almost everyone thinks GB Studio is a great RPG Maker alternative.
Adventure Game Studio (AGS) - is the IDE and the engine meant for creating and running videogames of adventure (aka "quest") genre. It has potential, although limited, support for other genres as well.
It doesn't work quite the same. And ontop of that, I don't like AGS.
Most users think Adventure Game Studio is a great RPG Maker alternative.
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If you want retro-style gameboy games, this is the one for you! No programming needed, though there is LOTS of limitations to fit with the game boy format. The best thing is that you can put it into an actual game boy console!!!