Great potential but in big need of some balancing as initial excitement of the concepts was a bit washed down. I understand in archeology a certain amount of luck is needed but in game it feels like crazy amount of grid needed to use some of those upgrades.

To sum up, great potential not the best execution in this release but I expect you will manage to make those adjusts after the jam because it has great possibility to go further with this game

This is a cool concept! I don't think I've played a game like this before. The mechanics were interesting, but I think the overall game loop ended up with a bit too much downtime, and the money earned feels pretty slow. I had to play hiroshima quite a few times before getting even one upgrade, which felt like it was too much. Here's a few tweaks I would make:

• Cut back on downtime. maybe you can add the ability to manage at least two "working tiles" at once, just to give the player something to do while they wait up to a minute while the game just counts down. You could toss a slow brushing timer down and then fill your waiting time with faster shovel spots to grind for cash.
• Your first playthrough of hiroshima should give at least enough money to upgrade one tool. Having no level progression and not enough cash to buy upgrades after finishing a level feels like the player wasted their time, or that they did something wrong. Grinding content should pretty much be avoided where possible, and definitely should not be encouraged so early in the game.
• Mention the importance of the brush somewhere in-game. I did not notice that the game was unbeatable without it even after playing for quite a while.

I loved the art and the music, and I loved the concept. I hope you continue with this!

This is an interesting one. I like being able to dig for new artifacts and seeing the art and quality difference. I can also see this making an interesting loop where you dig up artifacts, sell them, then dig up more. I think it would be nice if it didn't take so long to dig things up and if there was a tutorial on how the tools worked. I didn't really understand how the duster worked and the pick-axe didn't seem to do anything. Would also be cool to have something to do while waiting for things to finish! Overall, this'll be cool if the player was given more information inside the game instead of having it in the documentation. You definitely have potential with this, though! I love the art and it seems like a game that'll be fun to play after some work.