Nice game. I was an alpha-tester and here is my review:
Things I liked:
1) holding shift to engage fast mode
2) Sound effects paired nicely with animations; immersive experience.
3) cool mini-map.
4) Screen cracking when low hp.
Things I didn't like:
1) finding gold is hard. This is the last resource I fill up on before finishing the game.
2) not having a flare when a shark is chasing me (serves me right for shooting my flares for fun).
3) dying because I bump into a mountain when I'm low hp (serves me right for bumping into mountains left and right when I'm high hp).
4) The screen rotates strangely when I turn my camera all the way down or all the way up. Awkward during a shark attack.
Tips:
1) Shoot a flare horizontally across the sand and look for glints to find pearls fast. Also works for gold.
2) When you have sharks coming in at you from all angles, press E with shift to go up fast, then go to another part of the map or wait for your flare to recharge.
3) Try the game while holding shift all the time for extra challenge. It's hard!