Puzzle: Underwater World is a classical puzzle game invented in 1878, it’s still popular today. The sliding puzzle that consists of a frame of numbered square tiles in random order with one tile missing. The object of the puzzle is to place the tiles in order by making sliding moves that use the empty space.
Puzzle: Underwater World is a 2017 Adventure, Casual, Indie, Sports game priced at $1.99, with an estimated 20,000 .. 50,000 owners and a Mixed review sentiment (40% of 10 reviews).— census verdict as of 2026-09-20
0
playing now
40%
positive of 10 reviews
Mixed
steam's rating (official)
20,000–50,000
owners (SteamSpy est.)
$1.99
steam price (US)
0 players in-game as of 2026-09-27 23:00 UTC (census sample)
Health check
Quiet
· 0 players in-game at the last census sample.
· 7 reviews in the last 8 weeks (~1/week).
· Review velocity up 600% vs the prior 8 weeks.
· Top 98% of 28,739 Adventure games in the census by review count.
Health tier since 2026-09-03
All-time low: $0.49 at Steam (2017-10-09)via IsThereAnyDeal
12-month high $1.99 · on sale 9 of 18 observed days (census price snapshots)