Undersea Conquest presents a post-apocalyptic survival strategy game set in a fully submerged world where players manage underwater habitats and compete for scarce resources. Developed by ONEMT SGP, the game occupies a niche position within the mobile strategy market by combining deep-sea exploration with base management mechanics in a distinctive aquatic environment. The core gameplay revolves around three primary systems: habitat construction, resource gathering, and faction warfare. Players must construct and maintain pressurized underwater bases while managing oxygen levels, power systems, and structural integrity. The resource gathering mechanics involve sending expeditions to salvage materials from sunken ruins while avoiding environmental hazards and hostile creatures. The faction warfare system allows players to form alliances or engage in combat with rival survivor groups through both PvE and PvP encounters. The user interface employs a dual-layer navigation system with surface-level management screens and detailed habitat construction panels. Real-world usage patterns show players typically engage in short sessions for resource collection and longer strategic planning periods for base development. The control scheme utilizes intuitive drag-and-drop construction with context-sensitive menus, though some interface elements require multiple taps to access advanced features. Performance analysis indicates stable frame rates on mid-range Android devices, though loading times between major game areas can extend beyond acceptable thresholds. User feedback trends reveal polarized experiences, with recent updates significantly improving stability according to multiple reviews. Nick Hakala noted on August 18, 2025 that 'the game is working fine and is fun to play' following apparent updates, specifically praising the base-building mechanics. However, earlier reviews frequently cited technical issues including crash incidents during deep-sea exploration sequences and progression bottlenecks in late-game content. The current 3.3 rating reflects this mixed reception, with praise for the innovative setting countered by criticism of implementation inconsistencies. The game's primary strength lies in its innovative underwater setting and detailed base-building systems, which provide substantial depth for strategy enthusiasts. However, limitations include inconsistent performance across devices and occasional progression imbalances that may frustrate casual players. Ideal use cases involve players seeking complex management games who can tolerate initial learning curves and occasional technical issues for the unique thematic experience and strategic depth offered.