SEN is for people who need a short puzzle game to pass some time. It’s a simple game that won’t stay with you, but It’s good for when you’ve had a hard day and just want to relax or channel your focus.
It's a shame that the difficulty spike was so abrupt and painful. There is the core of a great game here. A little more play-testing or a little bending of the design philosophy to allow a hint system would have allowed me to retain the initial positive feelings I had towards the game. I hope that the developers make more games in this vein and refine their formula further.
There is a small amount of enjoyment to be found in SEN: Seven Eight Nine’s more challenging levels. However, the title fails to offer anything particularly novel or groundbreaking, and could also benefit from some quality-of-life improvements.