Moyo Studios’ latest game Zlider [App Store] is an interesting concept in that you’re assisting a meteoroid down a track in space to a black hole at the end of each level. In order to accomplish this goal, players must manage red and blue lines dubbed “star-belts" to provide a clear path for the meteoroid on its journey.
These star-belts have different sized gaps in them, and the only control you have of the game is moving the red belts up and down the screen by sliding your thumb along the left side and doing the same with the blue on the right. The early levels where you only need to deal with a single meteroid are fairly easy, but things get crazy as soon as your meteoroid splits in two (or more).
The grey line it travels down in later levels often forks in to several different tracks, spawning a new meteoroid on each. As these separate tracks lead up or down the screen, meteoroids will be in entirely different positions making managing the openings in the star belts even more challenging as the meteoroid on the top might be a half a second ahead of the meteoroid on the bottom.
The developer released the following gameplay video:
Zlider is another game with a single free version that is upgraded via in-game microtransactions. Initially included are four free levels to give you a taste of the game, then there is a “Andromedia" pack of 20 easy levels and a “Milky Way" pack of 20 medium levels– Each level pack sells for 99¢, and the iTunes description mentions even more level packs being released within the game.
If this game sounds at all interesting to you, you should at least give the free levels a spin. I’ve had a lot of fun with it so far, and really like that the level packs are segregated in to difficulty, so if you found the included four levels to be too easy you can just jump directly to the medium difficulty levels without even needing to bother with the easy level pack.
App Store Link: Zlider, Free
(Two level packs available as in-game purchases for 99¢ each.)