Want full 3d? Use Adventure Creator.
HATE typing? Use Adventure Creator or Visionairre.
Want TRUE retro? Use AGI Studio or SCI Studio (I think there's a SCUMM one too?).
HATE unity? Use Adventure Game Studio or Popochiu.
Otherwise- PowerQuest is for you!

What PowerQuest Does:

Streamlines unity for making 2d point-and-click adventure games.
Similar features, workflow and scripting to Adventure Game Studio.
All the advantages of Unity (portability, fancy shaders, no limits to what you can make).
Quest Editor window to set up your characters/rooms/inventory, etc.
Script Editor to quickly edit interactions in simplified dialog style language.
Script hot-loading- edit scripts while in game for rapid-fire testing.
Scripts save to native unity c# so you’re able to do anything unity allows you to.
One/two click (Wasdjet eye/BaSS), 9-verb (Lucas-arts), parser, or HD interface templates (or roll your own).
Dialog tree system, for branching dialog (similar to AGS).
Smooth scrolling camera + parallax.
Custom 2d audio system.
Powerful sprite animation system (PowerSprite) included. Easy directional animation handling.
Options for both pixel art or high-res games.
Text export to script file for dialog recording. Speech/voice support and automatic lip-sync generation.
Text export/import to csv, for translation/localization.
Automatic Save/Restore system that won’t break user’s saves when you change things.
Simple Gui system if you don’t want to learn Unity’s complicated one.

What PowerQuest Doesn't:

No 3D – Supports 3d models/rendering, but it’s really tailored for 2d, particularly with frame-by-frame animation.
No Visual Scripting– If you don’t want to do any coding at all, try AdventureCreator. Though PQ scripting is a great place to start learning!
Not as simple to learn AGS- Unity’s a huge beast to tame. No getting around that. But PowerQuest is a great intro into a more complicated tool, and much simpler than other Unity tools.

Advantages over Adventure Game Studio:

I loved using AGS and really wanted to build on what I loved about it, so PQ replicates all the functionality of AGS, with a bunch of advantages:

Smoother rendering
- Smooth camera movement, lovely built in parallax
- Smoother character movement
Easier testing
- Jump right into playing the room you're testing with 1 click. No building debug guis.
- Edit your script while playing and retry instantly for quick iteration.
Easier porting
- Unity's best feature is portability, it builds for everything.
Better text export/import tools.
- Export scripts as formatted HTML.
- Export/import from CSV with context.
Save games don't break when you patch your game (within reason ;) )
Simpler scripting but simpler, with more functions. Some examples:
- Dave: Hello instead of cDave.Say("Hello") in any script.
- Plr.FaceRight(); instead of cEgo.FaceLocation(cEgo.x + 50, cEgo.y);
- Plr.PlayAnimation("Wave"); instead of
```
cEgo.LockView(12);
cEgo.Animate(0, 0, eOnce, eBlock, eForwards);
cEgo.UnlockView();
```
Ability to do crazy unity feature stuff (particles, shaders, a modern 3d racing minigame) if you want to.
And loads of other small quality of life features too.