Defend your crystal tower against increasingly powerful waves of enemies. Collect gear materials, upgrade your equipment, and mine resources during downtime to enhance your character. Every 10 rounds, a powerful boss appears, and without specialized gear or skills, defeating it may prove difficult.

<video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3557100/extras/5f02e99d98358b2eda0556906b1c060c.poster.avif?t=1751110489" width=800 height=388 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3557100/extras/5f02e99d98358b2eda0556906b1c060c.webm?t=1751110489" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3557100/extras/5f02e99d98358b2eda0556906b1c060c.mp4?t=1751110489" type="video/mp4"></video>Enemies spawn every round and march toward your Crystal Tower. Defend it against waves of increasingly stronger foes.<video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3557100/extras/b9b20c508739626d4df7ccbea33b4a34.poster.avif?t=1751110489" width=800 height=398 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3557100/extras/b9b20c508739626d4df7ccbea33b4a34.webm?t=1751110489" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3557100/extras/b9b20c508739626d4df7ccbea33b4a34.mp4?t=1751110489" type="video/mp4"></video>Each round, you’ll receive a gear draw ticket.Use it to obtain random gear materials, and upgrade your equipment to higher tiers.<video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3557100/extras/10bc40719dd400b530cedd21eea15798.poster.avif?t=1751110489" width=800 height=398 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3557100/extras/10bc40719dd400b530cedd21eea15798.webm?t=1751110489" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3557100/extras/10bc40719dd400b530cedd21eea15798.mp4?t=1751110489" type="video/mp4"></video>Between enemy waves, there are moments of peace. Take that time to enter the mine and collect valuable resources. Mining provides various materials that help your character grow.<video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3557100/extras/877ee6ed259bc64cd8d6274c6f138087.poster.avif?t=1751110489" width=800 height=398 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3557100/extras/877ee6ed259bc64cd8d6274c6f138087.webm?t=1751110489" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3557100/extras/877ee6ed259bc64cd8d6274c6f138087.mp4?t=1751110489" type="video/mp4"></video>Every 10 rounds, a powerful boss will appear. These bosses are extremely tough. If you're struggling to defeat one, check if you're lacking boss-specific equipment or abilities.<video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3557100/extras/97c0be06f9c20752dfeab0da33d30d65.poster.avif?t=1751110489" width=800 height=398 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3557100/extras/97c0be06f9c20752dfeab0da33d30d65.webm?t=1751110489" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3557100/extras/97c0be06f9c20752dfeab0da33d30d65.mp4?t=1751110489" type="video/mp4"></video>From the Unique tier and up, each piece of gear has its own skill. Use these unique skills strategically to build the ultimate gear combinations.

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