It makes perfect sense why publishers would want to milk the legacy of classic games as long as they can. Why wouldn't they" Very often for a lot of these retro releases they've withstood the test of time, being sold to generation upon generation without any sign of stopping. Bandai Namco is the king of that practice, having delivered us hundreds of Pac-Man ports, re-releases, and spinoffs in the past several decades. But what I love more than a port is an original take on a classic formula.
When you start putting your games on basically every platform known to man, there's a point where the tactic feels cheap. This is especially the case on mobile, with retro titles being dumped onto the platform for the masses to buy with non-optimized control schemes, and of course, a complete lack of future updates, turning the app into an obsolete icon over time. While the update situation remains to be seen, Galaga Wars [Free] doesn't feel like a quick cash-in. Yes, it is a free-to-play game, and yes, it uses those "watch videos to continue" schemes, but hear me out.
Galaga Wars, like many other successful touch-based shoot 'em ups, uses the finger slide scheme for your ship, with automatic shots enabled. It's something everyone can pick up and play on their first attempt, and the always great "auto-pause if you lift your finger" mechanic is welcome. And that's really all you need to know, as this is as classic as it gets, minus the addition of some power-up...