Why astro90
A star at 90 degrees stands straight overhead, at the zenith: the highest point in the sky, and the easiest one to find your way by. The ring at the end of our name is that star, sitting where a degree sign would.
It's a good reminder for a small studio. Make a few things, aim them high, and keep them clear enough to steer by.
What we make
Small games, each built around one simple idea, polished until it shines.
Inkube one swipe · one rule A swipe-and-merge ink puzzle with one rule: matching blots merge, full blots burst, and the ink keeps spreading. Meet Inkube 
Lighthouse Light every island. A calm logic puzzle across 400 painted islands: one lighthouse in every row, column and region, and never two touching. Meet Lighthouse How we make them
One idea, polished
Each game has a rule you can learn in seconds and enough depth to keep you coming back. Inkube has one swipe and one rule. Lighthouse has one lighthouse per row, column and region.
Play first
Open the game and play. There's no account to make and nothing to sign up for.
Straight about money
Our games are free and show ads, and we say so up front. One purchase removes the ad breaks, and the optional ads stay if you want them. No energy timers, and nothing that locks you out.
Calm by design
Clear contrast, readable type, and ways to turn the motion down, in our games and on this site.
Who we are
astro90 is a trade name of Ktesio, a software company registered in Rotterdam (KVK 42172743). Ktesio also builds software for other companies; astro90 is where it makes games.