When comparing Quell+ vs Strata, the Slant community recommends Strata for most people. In the question“What are the best puzzle games for Android?” Strata is ranked 4th while Quell+ is ranked 23rd. The most important reason people chose Strata is:
The game scales to any resolution so you can have it in a window on the side.
Specs
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Pros
Pro Polished presentation
Quell+ takes the extra step to have a very polished presentation. First there are no loading screen, so all menus and levels move along smoothly and have zero wait times in any transition. Second is that there is a very artistic design around each level where in a user navigates menus that are presented as a story one must reveal. The overworld is presented as a bookshelf that contains different years as shelves, each shelf has a selection of levels that have an certain theme, changing with each year selected. Overall it is a unique representation that shows a lot of polish over other casual puzzle games.
Pro Superb level design
Though the basis of the game is simple enough, collect all fragments in a level with as little moves as possible, there is quite a bit of good level design that uses a few different elements to make the gameplay challenging. Things like being able to teleport across the board or blocks that appear to block your path once passed over make each level more challenging than the last due to smart level design.
Pro Supports flexible window resolutions
The game scales to any resolution so you can have it in a window on the side.
Pro Addictive gameplay that steadily increases in difficulty
While the gameplay starts out as being quite straightforward (therefore easing the player into the game), the difficulty does build as one continues to play.
Pro Original design and gameplay
The minimalistic look of the game as well as the way the gameplay works is quite original while still staying intuitive.
Pro 2D minimalistic "weaving" that requires thinking in 3d
While represented in 2D the puzzle solving aspect of the game requires thinking in terms of "levels" as one would while weaving.
Cons
Con Not a lot of replayability once beaten
Once the game is beaten and all puzzles are solved there is not much reason to revisit the game as there is nothing else left to do, so sadly there is not much replayability once the game is completed.
Con Too easy if you figure out the pattern
The pattern behind the puzzles isn't the simplest, but if you can figure it out, you can solve any of the puzzles quickly.
Con Includes in app purchases
Strata is an upfront paid game at $2.99 which is why it is disappointing to see that in app purchases later apply.
Con No level generator
Even though the levels could easily be automatically generated, there is no level generator.
Con Short
The game can be beaten in about six and a half hours, which is really not all that long for a PC game. Of course originally this was a mobile phone game, which shows its roots in the length.