The 13 Invaders

Cool animation of earth and moon, should be interesting with upgrades, but nothing spawn after level 1, I was not able to play more.

13 Steps to Escape

I really like the use of emojis for graphics. Unfortunately, I couldn't play past Level 1, but I got the gist of it. It was fun though.

13attle TanKs

No waves spawned at level 2. Maybe it was because I bought some upgrades?

I like the use of emoji, especially the rockets. Maybe the "13"-asteroids coming at me could have been a mix of emoji ☄️ and the number 13 as well? (Just brainstorming)

Bubble Burst

Made it to level 5 by pure patience :-) After leveling up (and upgrading) the game waits too long to send the new wave.

Nice artstyle and music.

The game would benefit from a little bit variation, maybe othe attack-patterns (not all in a straight line) or variation in the missile-types

Aargh! Triskaideka attacks!

I’ve played on desktop and mobile. I think mobile is easier.

I enjoyed playing, and can see there’s plenty of scope for expanding it.

When I dispatched all the 13s the planet kept rotating and the moon orbited but no new 13s came, like the game was over but without a way to continue?

rollermaze

I played the first wave, but then nothing else happens on wave 2. The first wave was very easy and barely a challenge, so I was looking forward for the next levels and upgrades.

I was surprised, but it seems despite being quite simple, this game is very demanding on my computer, and the animations are not very smooth. It was a bit weird that the moon orbits the earth but never passes in front of the earth somehow.

The time is displayed a bit weirdly, for example instead of 4:01 it would show 4:1 without the zero, which is odd.

Thirteen Terrible Stunts

I made it past level one; no more enemies came after level 2, bought some upgrades but could not make use of them.

The Fear Factory

I think the game was broken? I killed all the enemies and then nothing happened after that. The timer kept ticking up but no more enemies spawned, so couldn't progress after the first round. The upgrades confused me at first because I thought the format was telling me the cost per upgrade and not the increase amount per cost.

The Encroaching Darkness

A simple and fun game, very straightforward with regards to the theme. Good job!

Sun orbiting the Earth game me a good chuckle :)

The music fits the space theme nicely.

One thing I'd consider changing would be emoji, seeing that you were far from the size limit it was possible to add some graphics instead.

(The use of emoji for graphics makes many entries lack personality and look almost indistinguishable, to me at least.)

Shoot 13 NomstersKing Thirteen

Reached level 3!

After the first wave, I thought it was stuck, but it turned out that the time before the next wave is quite long, I managed to upgrade myself and just wait for a while, I think it would be good to be able to start the next wave faster. Also, for some reason, when 13 flew into me, I died, although the HP was still 5-10 :).

In everything else, the game is great! Pleasant music, appropriate to the theme, good control and intuitive enough. I like how the Earth rotates with its continents :).

Among the improvements I would like to see are possible moving backgrounds, namely stars, starlight (various intensities), passing comets, meteorites, etc. It would be funny to watch how 13 flying to the planet crash into an asteroid and thus do not reach :D.

Nice game, congratulations!

How it started

There was nothing after the first wave and I wanted to test my upgraded rockets :) Interesting use of the emoji! For some more realism, the Moon could pass in front of the Earth for half of its cycle. Also missing some explosions. Nice music.

Odyssey

The UI wasn't very intuitive. It took some exploring to find the upgrade menu.

After wave one, there were no more waves.

Controls were pretty simple and easy to use.

Nice job.

Salvadoran Reclamation: MS-13

After finishing the level 2 wave it didn't move to level 3 no enemy left to kill. the menu with upgrading stuff is a nice touch!

13 Seconds To Midnight

Nice idea and has potential.

Would be nice to have the music on by default for atmosphere. Throw in explosions and particles and it would rock.

One weird thing happened; when i started wave 2, no aliens arrived.

Gecko Blaster

Nice job, fun game. I made it to level 14 and then the enemies were too fast. The time between waves could be a little shorter, I felt like there was a lot of waiting between waves. The upgrade system was nice, the music was great. Well done!

Phantomicus

Fun game, nice use of emojis for sprites!

I found the upgrades menu only after reading the description or I would have missed it, perhaps making it a bit more prominent would have helped.

Xiicur Surviivors