I couldn't tell you what's attracted a shoal of underwater exploration-y games, beyond perhaps a growing dread that maybe we won't be lucky enough to die before the world's drowned, but I'm glad they're surfacing. FarSky and Subnautica are floating around now, it's surely time we heard more from Diluvion, and I'm forgetting a few others. I'm adding Tachyon Reef to the list, as the deep sea explore 'em up due later this year has only just caught my eye. Come squeeze into your cozzie for a trailer. And yes, that is a roboshark up there.
Developers Five Archers Corporation are sending submersible captains through a mysterious portal in the Arctic Ocean to the alien Tachyon Reef, a place filled with strange creatures and technology - sometimes both in the same form. It's mostly about exploring, recovering technology, upgrading your sub, and just watching what undersea denizens get up to. And look, it has a manipulator arm so you can jab at fish.
Judging from recent updates on its Steam Greenlight page, models only have that lovely untextured style because, well, they don't have textures yet. That seems a shame. The clean untextured look leaves a lot to the imagination, while the few textured screenshots squish that ambiguity with uninteresting and muddy details. Hey ho!
Five Archers plan to release Tachyon Reef some time from October to December.
[Bonus commentary: this is my favourite song about the world flooding.]