Negative Space is a free Android puzzle game developed by 1bsyl. The game is based on the concept of negative space, where you play in white, black, or both. The objective of the game is to draw on the screen in black or white to open paths and push each blob to its respective flag. The game has a tutorial and different levels that are all possible to complete.

The graphics and design of Negative Space are simple yet engaging. The game has an easy-to-use interface that allows you to draw on the screen with ease. The sound effects are minimal, but they add to the overall experience of the game.

The game is challenging and requires critical thinking to complete each level. Negative Space is a great puzzle game for anyone who enjoys brain teasers. However, it is worth noting that the game may not be suitable for those who are colorblind or have difficulty distinguishing between black and white.

Overall, Negative Space is an excellent puzzle game that is worth trying out. It is a unique concept that is executed well and will keep you engaged for hours.