Another game is free on Steam. This game is called, “AX:EL – Air XenoDawn.”
What is AX:EL – Air XenoDawn?
Build your own aircraft and prepare to fight!
Combining the very best of sci-fi and aerial dogfighting gameplay, AX:EL delivers a totally new gaming experience. Create your very own shape-shifting vehicle and dominate both the sky and the ocean.
Build your own bespoke aircraft, from mainframe to wings. Dominate the skies then watch your aircraft morph into a silent underwater killing machine as you chase the enemy from the blue skies into the darkest depths of the ocean.
For those of you that are new to Steam then sign-up is simple and free.