The main features of toinfiniityandbeyond/unity-tilemap are: 2D Development.
Open-source alternatives to toinfiniityandbeyond/unity-tilemap include: aras-p/unitystbeasyfont. f15gdsy/2d-light-of-sight-unity. mrjoy/unitysvg. nickgravelyn/unitytiled. prime31/spritelightkit. ryannielson/pixelcamera2d — A Pixel Perfect Camera for 2D Games in Unity.