The sci-fi boss-rush game NanoApostle just dropped its free PC demo via Steam

"The London-based (the UK) indie games publisher PQube and Taiwan-based indie games developer 18Light Game Ltd., today announced with great happiness  and thrill that they have just released a free demo for their upcoming sci-fi boss-rush game NanoApostle (the said demo is available right now for PC via Steam)." - Jonas Ek, TGG.