When will the Moonlight Test for Dungeon Castle 4 begin? Has the test for Dungeon Castle 4 started?

Underground Castle 4: Knights and the Shattered Chronicles, as the latest sequel to the classic dark dungeon exploration and idle RPG, continues the series' 11-year accumulation of 30 million players, crafted by the original team. Today, I will share when the Luna Moon test for Underground Castle 4 begins. The test version retains the classic gameplay while adding innovative elements such as 3D modeling and dynamic event triggers, adopting a vertical single-handed operation mode that caters to both hardcore and casual experiences.

The latest download address for Underground Castle 4: Knights and the Shattered Chronicles

》》》》》#Underground Castle 4: Knights and the Shattered Chronicles#《《《《《

The Luna Moon test for Underground Castle 4 actually started on May 7, 2025, lasting for one week. The test is limited to the Android platform, and iOS users will have to wait for subsequent tests or the official release. The test adopts a "limited pay-to-delete" format. If you missed this test, don't worry; the game itself is very mature, and it's expected that the next phase of testing or the official release will be open soon. You can first go to the Wandoujia game section to make a reservation.

The Luna Moon test opens up the core gameplay of the game, including systems like dungeon exploration, hero recruitment, and equipment crafting. Players can experience the main storyline up to Chapter 7, recruit 20 heroes, and challenge副本玩法如藏宝之地、龙痕竞技场等。游戏延续了系列经典的数值策略战斗，同时引入“人性值”系统，玩家的选择将影响剧情走向，而且测试版本优化了竖屏操作，支持放置挂机，适合碎片化游玩。

The Luna Moon test opens up the core gameplay of the game, including systems like dungeon exploration, hero recruitment, and equipment crafting. Players can experience the main storyline up to Chapter 7, recruit 20 heroes, and challenge locations such as the Treasure Land and Dragon Trace Arena. The game continues the series' classic numerical strategy battles while introducing the "Humanity Value" system, where player choices influence the story's direction. The test version also optimizes vertical screen operations and supports idle gameplay, making it suitable for fragmented play sessions.

This test opens up the payment function, and the amount players recharge during the test will be refunded at a proportional rate during the official release. Recharge amounts from multiple tests under the same account can be cumulatively calculated for the rebate. For example, if a player recharges in the "Lighthouse Server" and uses the same account to participate in the Luna Moon test, the rebates will be combined. Additionally, there are abundant server opening welfare emails, survey rewards, and creator activities during the test period. You can also prepare for these reservation rewards, which are likely to be retained in the next phase of testing.

As the latest work in the Underground Castle series, Underground Castle 4 demonstrates rich gameplay and strategic depth in the Luna Moon test. This test not only serves as a small trial for the development team but also provides players with an early opportunity to experience the game. With further optimization, the game is expected to offer a more refined dark adventure experience at the official release.