Saira is a pretty cool indie platformer, its a good length aswell and it being free really is just the perfect combo. Saira has a few bugs with some graphics drivers and some resolution issues but they are tolerable, and I myself never had any crashing or other issues, though many folks who have played have had these above described issues.
Story wise Saira tells an interesting tale of teleportation gone wrong, is it timetravel, was it some type of natural disaster, what happened to the other humans? These are some of the questions you will ask yourself on your journy to fix up your ship and teleporter across the galaxy.
Overall though Saira offers a good deal of platformer and puzzle gameplay, there are multiple ending aswell though I haven ot experienced all of them. I recommend Saira to anyone looking for a free indie, platformer of puzzle game.