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Echo Abyss
A one-finger deep-sea sonar survival roguelite with no start screen. Pitch-black procedural caves are revealed only by expanding sonar wavefronts with SDF-raymarched soft sound-shadows (WebGL2 with full Canvas 2D fallback), a GPU plankton field that exists only where light touches, blind hunters that hear your every move, an anglerfish lure that punishes greed, erupting abyssal vents, a leviathan whose roar lights the whole map for everyone, 12 stackable evolutions at depth gates, fully synthesized WebAudio whose echo notes return at physically correct times and whose convolution reverb measures the cave around you, and a death screen that paints your entire dive as one luminous Afterglow thread. Score = depth + pearls × unharmed combo, submitted to the leaderboard.
5 票 / 170 次游玩 / 4小时 16分钟
