I quite like this, the idea is pretty simple but enjoyable too. Without the ability to upgrade it would have been a bit dull, but with upgrades and the points it gave a good motivator to keep playing.

Main issue I had with it was the way enemies spawn though - too often they would spawn in clumps or suddenly appear in front of you. I ended up going directly to the edge and moving along the sides, killing things as they appeared.

If this were polished up, maybe with some more strategy + depth (imagine allied planets which you need to protect or ships and trading etc.) I think it could make a really good standalone game.

I left a comment on your kongregate page, but again, I did find this very enjoyable, balancing issues were mainly a problem I had with it overall, but yeah. Very fun.

The concept and tank upgrading is great, but I couldn't get very far in the game, enemy planets stop appearing after I kill the first one for some reason (that or the spawning time is just very slow), or if two spawn right in the beginning they blast me to dust before I can do anything.

i didn't even manage to kill one planet :'( Impressive work though!

Moving the planet and the moving factory (!?) was a good mechanic ! The upgrades were a nice touch. And you got music <3

Upgrading abilty was really cool! graphics were also fun!

wow...i was killed 3 consecutive times...those enemies are tough. the luks are pretty good and also nice wrk on the upgrade system. But gameplay (particularly AI) could have been better

It's fun to play!
The upgrades really motivate me :D

166 points! Circling your enemies ftw.

Dude .. this is incredible. Great job. Lots of fun to play, and very hard! Needs a little more balance between upgrades and enemies (a little less random would be better). I know you didn't have a huge amount of time to make the game, but you did much much better than I did (and I had the whole weekend!). Keep up the great work.

This game was a lot of fun! Great job, really addicting!

Challenging, highly addictive game, great work man :D

The upgrade system is well done and the battles are fun.
The music is awesome and gave nice atmosphere.

Pretty fun, my biggest gripe is that I was either finding no one to fight, or multiple enemies which killed me quicker than quick.

Nice! I liked the upgrade system.

Great game! It's a little hard at some points, particularly more than one enemy spawns near you.

It would be amazing if this was multiplayer.

Fun game! I liked the upgrade mechanic. Would've been nice to have a better clue on how strong the other planets were so I'd know better when to flee.

I felt like the game's spawning algorithm could use some work. It seemed like there were long periods where I wouldn't run into an enemy at all, then hit 3 of them at once. You really don't have a chance against those odds.

The music was really good, but it was a bit too nice when paired with the rudimentary graphics. It felt a little out of place.

The upgrades were a nice touch, but again, when you run into a clump of 3 planet enemies, not much will save you.

Very challenging and fun ! The upgrade system is well banlanced. The problem is yo ucan shoot some planets from distance without trigger their "hunt" behaviour. There's also some random spawning in screen, that make the game a bit unstable. If you want to implement random attacks even if the player is not moving, spawn out of the screen and raise the range of detection of your attacking planet, it will look more like a real attack.

Cool idea and fun execution. The spawning and slow initial speed made it a little too difficult to be really addicting, but with some polish this could be a really fun game.

Pretty addictive gameplay :)
Good job!

Upgrades!! I really like it! ;-)
There is a nice sense of progression when you and the enemies get stronger.
If only the universe would be infinite, I think this would help both, logic and gameplay.

I like the simple idea ! If there were'nt be the ability to upgrade, it would be a little "weak". The difficulty is hard when you're crossing the path of two other planets but it's fun...Good game!