Crush Depth: U-Boat Simulator

VS

Scum

Crush Depth: U-Boat Simulator is an indie, niche simulator released in 2021 on itch.io by a small developer. Submarine simulators tend to have a small, dedicated community but are not mainstream. Given its platform and lack of major publisher support, the daily player base is likely quite limited, under 100 players.

Scum is a multiplayer open-world survival game developed by Gamepires and originally entered Early Access in 2018. While it is not a full MMO, it supports servers with dozens of players (up to 64 per server). The game maintains a niche but dedicated following and is frequently updated; however, it has never reached large mainstream status. Based on long-term trends of similar survival games, its daily active player base is estimated to be in the low thousands, and this estimate would hold unless a major relaunch or expansion revitalized the player base.