Overview:
- Estimated achievement difficulty: 2/10 [Achievement Difficulty Rating]
- Offline: 15 [1000]
- Online: 0
- Approximate amount of time to 1000: 3-4 hours [Estimated Time to 100%]
- Minimum number of playthroughs needed: 2
- Missable achievements: 1 - "Heaven or Hell"
- Does difficulty affect achievements: No difficulty option
- Unobtainable/glitched achievements: None
- Extra equipment needed: None

Introduction:
The Spectrum Retreat is a first person puzzle game where you use various colors and swap them to solve puzzles, very much in the vein of QUBE. You're also introduced to teleportation and gravity manipulation later in the game to change up the puzzles. The game takes place in a hotel with a creepy and Black Mirror-esque narrative, although without the depth. Like many puzzle games, you can use a guide to complete this game very quickly, in a couple hours for the first playthrough. You have to then do a second playthrough to get the other ending, which is unfortunately unavoidable.

Abbreviated Walkthrough:
As noted in the Intro, you're going to have to do two playthroughs of the game to see both endings. I recommend doing the first one yourself to actually enjoy the game, the puzzles, and the narrative. If you just want to follow a video guide, there is one in the "Prisoners of Our Own Device" achievement solution. Keep in mind there is one missable achievement, so don't forget to grab that on one of your two playthroughs. There aren't any collectibles or anything to really worry about, so you can just play and enjoy the game if you want. Choose one of the two endings and remember which you chose.

If you used a guide for your first playthrough, then the second one is going to be even more boring. If you didn't use a guide, now you might as well use one because there's nothing new to your second playthrough. You can skip all the sections where you searched for the access codes and just jump right into the puzzles. At the end of the game, make sure to grab the missable achievement if you didn't during your first playthrough, then make sure to choose the other ending. Upon achieving both endings, that should wrap up your completion.

Conclusion:
The Spectrum Retreat is an enjoyable puzzle game with an intriguing dialogue and plot as the game progresses. I felt that it relied a little too heavily on the random furniture and such throughout the puzzles to develop the story, and many documents and notes were difficult to read. The puzzles also felt incredibly similar to QUBE with the same style of puzzle. It was also a very strange decision to require two playthroughs for both endings since the second playthrough gets you nothing additional for the story and you don't even get to see the consequences of your choice. It's still a decent game though and worth a play, especially if it's on sale.

[XBA would like to thank Necrophage33 for this Roadmap]