Hi there!
Patch Beta 1.6 is here, with some improvements and additions!
New weapon "Static Cannon": place a fixed turret that autonomously shoots close targets;
New weapon "Wasp Swarm": Releases autonomous drones that each lock onto a separate enemy and self-destruct on contact;
New weapon "Metamorph Beam": A beam that transforms enemies into amphibian space creatures;
New weapon "Giantifier Laser": Enlarges the target enemy by 40%, increasing its damage by 10% but reducing its speed by 50%;
New weapon "Shrinker Laser": Shrinks the target enemy by 30%, reducing its damage by 10% but increasing its speed by 10%;
New weapons sprites for railgun, frostfire lance, ice storm, plasma cannon, plasma storm, disco ball;
New event "Distress Beacon": defend the beacon (small green circle with green health bar) from enemies to gain a new crew member;
6 new enemies and related achievements;
New background effects, to make the background more animated and vibrant;
Small fixes on enemy pathfinding;
Improvements in explosions and weapons visual effects;
The usual balancing / bugfixing.
From now on, I'll start working on some main menu/screens UI improvements, new and more diverse boss mechanics, and some balanincing and bug fixing in enemy behaviour and particle systems.