Pretty cool game! Love the different options and configurations that you can make with the train.

Pretty good. I wanted to build a full train around the entire circle but alas I wasn't very good

Very interesting take on the tower defense genre! Plenty of customization options that allow for different strategies. Pretty intuitive and easy to pick up.
A couple of small things: when purchasing upgrades, the UI covers up the resource amount. The level time also feels a tad too long and could be a little shorter.

Didn't even fell the time passing while playing! Very addicting! Congratulations, this is a pretty good game, would fit perfectly for a Mobile Game too!

I really love the concept here; it feels like it has a ton of potential!
The balance felt really nice, too. It felt like there was a constant threat to the hearts, but not an insurmountable one.
I would have loved tooltips and more information when clicking on things (what level my train cars were, some damage/RoF numbers, what boosters did, etc).
Overall a nice game.

Love the idea! Executed well too. Nice work!

Love tower defense, and this is a surprisingly good one. It's amazing how many different options there are and how well they interact with the core mechanics. Also, the idea of a train-based tower defense is very original. Nice work.

Nice!! Love the idea. Here's my winning train:


Nice execution and very fun game. I think I killed myself by getting the black hole, it kept pulling enemies into the heart! Otherwise, great entry!

Very nice idea and love the execution, although I feel it can get a bit slow at times. A fast forward time button would be appreciated.

well done game,i bit of a slow paste. for me but i really like the upgrade. i found a bug tho and the web version : in order to ear the music propely.

This was a lot of fun! I enjoyed making and upgrading the trains. I felt like the maps benefited from different strategies (but also there were some strategies which were simply better like getting a bouncing cannon early). The art was simple but it worked, same with the audio. Nice concept and nice work!

Nice setup, I like the variety in train cars and the upgrade system was seamless.

Super cool take on the theme and tower defense games

The game was fun to play! The mechanics, if a bit unoriginal, were very engaging. I was always on the edge of my seat at the end of a level.
I will say that the game is very slowly paced, and the art definitely needs to be complete (I would recognize that default UI knob sprite anywhere), but it definitely doesn't look bad. You could make it look even better in just a couple of minutes by using a color palette (I would recommend coolors.co for this). I would also recommend improving the UI; just picking a custom font from dafont.com will go a long way. Plus, the music did get a bit repetitive towards the end, but putting it at a lower volume like you did was enough to fix it.
Good job, and keep at it! You're improving over time, which is a good sign!

Very good game, everything works well, great job!
The black hole is indeed a little tricky as it can easily pull ennemies into your heart ^^

Cool game, I like the idea of moving turrets in a tower defense game.

Also agreeing with other comments that it can get a bit slow but that's ok, watching the train loop is mesmerising...

Nice little game, pretty good game loop, the 2nd level felt a bit hard at first, but then I found out you could get chain cannons. One minor visual improvement could be if you made the range graphic much higher resolution, its veeery blurry due to upscaling. Also the Orb cars attacks is kind of unclear, it's hard to see any effects it has, since the actual damage is either applied at the end of animation or at the beginning? not quite sure..

Anyway overall I enjoyed it and liked it!

Nice game, tried all the maps & conquered them all, partly not really knowing if a strategy will pay off :D btw there seems to be a thing about trains in strategy indie games, do I smell a trend?