I'm TOTALLY not a clicker! by maartene

This game was created in 48 hours as a Ludum Dare 42 entry. I named this game in honor of my colleague Robert who totally dispises clickers. With this title however, I'm sure he'll play it anyway.
Instructions
You only need a mouse to play this game!
Basics:
Drag cubes over similar ones: - Two level 1 cubes make one level two cube - Two level 2 cubes make one level three cube - Two level 15 cubes make one level 16 cube - ???? level 1 cubes make one final cube
Coinz:
Cubes earn you gold Better cubes earn more Buy cubes for gold
Theme:
Yeah, I decided to forego adhering to the theme this time and just make a game I felt like making.
Bug FIxes:
August 13, 2018 @ 5:30 CET: fixed a bug where you could drag a cube through the floor rendering it lost. This can be pretty frustrating.
| HTML5 (web) | https://www.thedreamweb.eu/game_host/LD42/ |
| Source code | https://github.com/maartene/LD42 |
| Original URL | https://ldjam.com/events/ludum-dare/42/im-totally-not-a-clicker |
Ratings
| Overall | 358th | 3.385⭐ | 28🧑⚖️ |
| Fun | 214th | 3.519⭐ | 28🧑⚖️ |
| Innovation | 546th | 2.808⭐ | 28🧑⚖️ |
| Theme | 654th | 2.731⭐ | 28🧑⚖️ |
| Graphics | 352th | 3.269⭐ | 28🧑⚖️ |
| Audio | 112th | 3.558⭐ | 28🧑⚖️ |
| Humor | 382th | 2.28⭐ | 27🧑⚖️ |
| Mood | 296th | 3.06⭐ | 27🧑⚖️ |
| Given | 24🗳️ | 15🗨️ |
I really found it hard to understand the main mechanics. Especially because when you drag two incompatible blocks, the dragged block vanishes and falls again. This may make it appear that the game is really only a clicker (I don't know if this is intentional). Anyway, you have a creative and VERY ADDICTIVE mechanics and nice graphics/audio. I think that with a loss condition you have a really awesome game in hands. Congratulations for your wonderful entry!
PS: Why can't we continue to play normally after we get the last block? :(
Nice visual language, only the music become a little repetive on forth time.