This is a strategy game that combines tower defense with Roguelike. Unlike traditional tower defense game, the towers in the game are vehicles that move along ‘loops’.You need to create defense loop and build battle trains to defend against enemy attacks.
Instead of static towers, the game allows players to construct railway tracks that form closed loops, and deploy "trains" that travel along these loops. Each train can hold up to four different "vehicles" or towers, which players can combine and upgrade. This dynamic tower system adds an engaging layer of strategy as players must carefully design their loop layouts and synergize their train compositions.
The game's "domain" mechanic applies a damage-boosting debuff to enemies within the area contained by the player's loop, incentivizing the creation of compact, efficient loops. However, the main station has a timer that resets when the train returns, so players must balance loop size against maintaining the domain's effectiveness.
Each vehicle in a train has two traits - one defining its attack type, and another providing a supporting ability. By combining vehicles with matching attack traits, players can unlock powerful synergistic effects, further encouraging experimentation and optimization of train loadouts. With over 60 unique vehicles to discover, the potential for diverse and game-changing train compositions is vast.
The game features a roguelike structure, with each run introducing randomly generated enemy nests and layouts. As players progress, they unlock new main bases, each with distinct features that alter the gameplay dynamic. Additionally, players can acquire a wide variety of upgrades, items, and one-use abilities through level-up rewards, adding an element of unpredictability and incentivizing repeated playthroughs.
According to user reviews, the game's core appeal lies in its unique and engaging tower defense mechanics. Reviewers highlight the depth of strategy involved in designing efficient loops, optimizing train compositions, and adapting to randomized challenges. Many praise the game's innovative approach to the genre, which sets it apart from more traditional tower defense experiences.
While the overall reception is positive, some reviewers note areas for improvement, such as the need for a better tutorial to explain certain mechanics, like the train merging system. Additionally, some users comment on the quality of the English translation, which could benefit from further refinement.