
In Kaiju No. 8 The Game, Dimensional Crystals serve as the premium gacha currency, letting players summon their favorite characters. Since banners are often limited and highly competitive, knowing how to farm these crystals efficiently is essential.
Fortunately, the game provides plenty of free opportunities to stockpile Dimensional Crystals without spending real money. Here’s a complete breakdown of every method currently available.
1) Completing Story Missions, Memories & Character Episodes

One of the most consistent ways to earn Dimensional Crystals is by progressing through the main story missions. Players can also unlock:
- Memories – replayable missions that let fans relive key moments from the anime and game.
- Character Stories – exclusive episodes for SSR characters that provide both lore and rewards.
As future updates expand the storyline, additional missions will continue to give players more Dimensional Crystals.
2) Unlocking Achievement Rewards

Kaiju No. 8 The Game currently features over 149 different achievements, each rewarding players with various items, including Dimensional Crystals. By completing these milestones—such as reaching certain battle goals or progression benchmarks—you can steadily grow your crystal stash.
3) Clearing Trial Battles
Trial Battles are special stages that let players test new characters before deciding whether to pull for them. Successfully completing these trials rewards Dimensional Crystals.
Since new characters and limited banners will keep arriving, players can expect fresh Trial Battles with each major update, offering recurring opportunities for free crystals.
4) Ranking Up
Leveling up your account is another reliable way to collect rewards. Rank-up bonuses include:
- Dimensional Crystals
- Upgrade materials
- Credits
- Gacha tickets
This means that simply by playing and progressing, you’ll earn free premium currency.
5) Checking In-Game Mail

Never forget to check your in-game mailbox, as it often contains valuable gifts. Examples include:
- Pre-registration rewards (large batches of Dimensional Crystals)
- Character letters – where in-game characters send messages that include bonus rewards
This is one of the easiest ways to claim crystals with minimal effort.
Farming Dimensional Crystals in Kaiju No. 8 The Game doesn’t have to feel like a grind. Between story progression, achievements, trial battles, rank-ups, and in-game mail, players have plenty of free ways to save up for upcoming banners.
By combining these methods, you’ll always be prepared to summon your favorite characters when limited-time events arrive.
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