CatDog World: After Humans presents a strategic base-building experience set in a post-human world where animals struggle for survival amidst extreme environmental conditions. Developed by StarFortune, the game positions itself within the crowded mobile strategy genre but distinguishes itself through its unique animal-themed narrative and shelter management mechanics. The game's core premise revolves around managing dwindling resources while constructing shelters to protect animals from scorching heat waves and environmental degradation. The gameplay centers on three primary systems: base construction, hero collection, and resource management. Players must strategically upgrade animal shelters, research technologies to improve survival chances, and recruit animal heroes with unique skills. The hero progression system allows for character upgrades through skill enhancements and star-ranking improvements, providing depth to the collection mechanics. Resource allocation becomes increasingly critical as players advance, with water and food supplies requiring careful management to maintain shelter operations and hero development. User interface design follows conventional mobile strategy layouts with clear menu navigation and visual indicators for construction progress. The game employs a top-down perspective for base management while utilizing portrait-oriented menus for hero management and research. Real-world usage patterns suggest sessions typically last 10-15 minutes for routine upgrades, with longer engagement during event periods. Some Android users report interface issues, particularly with chat functionality being obscured by navigation buttons, impacting customer support accessibility. User feedback trends indicate generally positive reception with specific praise for accessibility and progression systems. Jason Allen (August 11, 2025) notes the game is 'fun and addicting' with easy-to-learn mechanics, while Danya Zwiegelaar (August 12, 2025) appreciates the shelter-building concept but requests additional construction queues. Several reviewers including karen Hoffman (August 11, 2025) mention desire for expanded hero rosters beyond current offerings. Technical issues surface in reviews such as J. Lang's report (August 11, 2025) of character puzzle glitches affecting progression. The game demonstrates strengths in its accessible progression systems and thematic originality within the strategy genre, though limitations appear in technical stability and interface optimization. The single construction queue system creates bottlenecks in late-game development, while reported glitches in hero collection mechanics may frustrate completion-oriented players. Ideal for casual strategy enthusiasts seeking animal-themed alternatives to human-centric post-apocalyptic games, though hardcore strategy players may find depth limitations compared to more complex titles in the genre.