Shot War: Frozen Survival

This is a portrait-oriented, short-session strategy game where players build a base and engage in zombie shooting. While it offers a high degree of replayability and can be played one-handed, it suffers from significant monetization issues and glitches, making it a potentially pay-to-win experience. It's best suited for players who enjoy quick, intense bursts of gameplay and are willing to overlook potential frustrations with its development and monetization.