I am currently in world three after abstaining from making a VIP purchase. As others have mentioned, the coins are virtually useless. The games main currency is gems which help in upgrading your ships. Yet having 4 ships (2 @ 54k + power), various drones(11k-19k power), and stones, it is still a challenge progressing through world three.

For a regular level you can earn 2 gems on easy, 3 on normal, and 5 on hard. For boss levels you can earn 5 gems on easy, 9 on normal, and 15 on hard. This totals 414 gems across one world (30 levels total with 6 boss levels). Now this was plenty while getting through the first world, but made it challenging getting through the second and now exhausting getting through the third.

The problem is the rewards are exactly the same across the worlds, yet the difficulty goes up significantly. I love the game and I enjoy a challenge, but I am not inclined to make a purchase to simply complete the story mode. I will no doubt continue playing, and will enjoy what I can while I trudge along this world. If you’re willing to invest in their VIP starter packs, I think the game should be fairly more do-able and enjoyable.

It’s fun at first and you can blast your way through a lot, but pretty quickly it gets almost impossible to beat without spending money. I spent $30 on gems to get the best ship in tier 1 that’s maxed out and STILL it was a challenge. Honestly, most of the “good” ships are absolutely terrible. High damage, but the stupidest fire rate and pattern ever to make it just a pain to use, but you’re basically forced to use them because they have the higher damage you need.

Along with that are the many, many ads you can watch (or are forced to watch) in order to unlock stuff. There’s a ship that’s worth 80 ads and it’s not even that good after a while. It’s just not worth it. There’s so little reward to anything and once you get to the higher levels, you’re not going to win. Period. Unless you spend hundreds of dollars. Spending $30 is already quite a bit and really should be ALL you’re spending total. But $30 gets you nowhere, so I’m deleting this app. I’ll give it 2 stars because it’s fun at first, but it’s a hard nose dive after. I’m sure the developer doesn’t care because they get a fat payday regardless, so best just to avoid this app and get something else.

Been playing this game 2 years now and I’ve finally had enough. Endless ads and most are over 1 minute long. Purchase monthly premium package to get rid of ads and still have to watch too many ads(only reduces some ads). Make in app purchases to develop my squads only for the devs to make power adjustments(weaken) my squads. If they don’t weaken your squads they adjust the strength of the bosses you need to kill. End result you spend money to achieve nothing but make theirs bank accounts grow. They have one goal and that’s to make their game the top $ grossing game period. Many top players and high dollar spenders have left the game because of this and I’m going to be next to leave. Ok game if you don’t spend money I guess but be warned. You will not go far without spending money because they keep adding more and more ships, drones and stones making it harder to collect the cards you need to expand and strengthen your squad’s. So if you don’t mind having a weak squad and watching ads that go on forever and spending countless hours farming for gold coins to make upgrades when you finally evolve a ship,drone or stone then this might be the game for you. My advice stay away and spend more time with the family you have instead of spending time on this game.