How to Get Free Dark Crystals in Tower of Fantasy

The Dark Crystal (Black Nucleus) is Tower of Fantasy's most common summoning currency: it's used to pull on the Black Nucleus Cache Banner and unlock basic-rarity weapons and Simulacrums without spending Tanium. It's also the game's most accessible gacha currency, since it's scattered all over the map of Aesperia (identifiable by a small white diamond on the minimap) and handed out as a reward from daily activities like the Daily Bounty. Unlike the Gold Nucleus or Red Nucleus, the Black Nucleus has no pity system, so pulling an SR or SSR comes down to pure luck, which makes stockpiling as much as you can even more important. In this guide we cover the verified methods for farming free Dark Crystals: daily bounties, exploring chests and map resources, main and side quests, temporary events like the Starpath Navigation Event, Claire's Dream Machine, the free battle pass, and the occasional redemption codes.

What's the fastest way to get Dark Crystals in Tower of Fantasy?

We've gathered and verified every real method for getting free Dark Crystals, ranked from most to least profitable based on the time they take and what you can actually earn from each. No tricks, no generators — just the game's own mechanics.

up to 4 quests/day Daily

Daily Bounty

Every day the server offers a total of 4 Daily Bounty quests that refresh after the server reset. Completing these tasks regularly rewards Dark Crystals, though not every task grants the currency in each cycle. It's the most reliable recurring source because it repeats every day without depending on limited-time events.

~556 Dark Crystals scattered around Aesperia One-time

Open-world exploration (chests and nodes)

The fastest way to stockpile Dark Crystals in one go is to explore the map: they're found inside purple chests and at specific gathering nodes like dandelions and rock oil deposits. These spots are marked with a small white diamond on the minimap. According to community guides there are roughly 556 collectible units across all of Aesperia, so it's a finite resource that runs out as you clear the map, not something that renews month to month.

Variable depending on the quest One-time

Quest rewards (main and side)

Completing the main story and side quests in each region of Aesperia grants Dark Crystals as part of the rewards, along with each zone's 'Exploration Advancement Reward'. Like exploration, this is finite content that runs out once you finish each region's content, though new regions or patches add more quests over time.

Variable depending on the event Every patch

Temporary events

Tower of Fantasy periodically launches limited-time events that reward Dark Crystals, such as the Starpath Navigation Event. Amounts vary by event and aren't always available, so it's worth checking the Rewards screen (gift icon, top right) to see which active events grant the currency at any given time.

Variable Variable

Claire's Dream Machine

This activity offers hidden rewards until you complete it, and it sometimes includes Dark Crystals among the prizes. You need to complete all the tasks within a time limit to get the reward, so its exact availability and frequency depend on how the activity is configured each period.

Variable amount Every patch

Free battle pass

The free battle pass hands out rewards for leveling up the pass, and Dark Crystals can be among them. It's not the main farming route, but it accumulates passively while you play through the current patch's normal content.

1 Dark Crystal per code (historically) Variable

Redemption codes

Every so often, Hotta Studio publishes promo codes that can be redeemed from the gift icon (top right) > Rewards tab > Redeem, by entering the code and confirming. Historical codes like TOF888 or THEGRANDSEA have included 1 Dark Crystal among their rewards, but according to the sources checked, no new codes have been published in a while, so this route is unreliable these days.

How much free Dark Crystals can you get per month?

Source	Estimated amount	Frequency
Daily Bounty	~15–40	Daily
Estimated total	~15–40 Dark Crystals per month on a recurring basis	—

This figure covers only the daily bounties, the only source that reliably repeats every month; not every bounty grants Dark Crystals each cycle, so the range is a community estimate, not official data. Exploration, quests, events, and codes can add a good deal more in a given month, but they're finite or time-limited content, not something you can farm steadily month after month.

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Frequently asked questions

What are Dark Crystals used for in Tower of Fantasy?

They're used to pull on the Black Nucleus Cache Banner, the basic summoning banner that lets you get standard-rarity weapons and Simulacrums. Since it has no pity system, every pull comes down entirely to chance.

What's the fastest way to get a lot of Dark Crystals at once?

Exploring the map of Aesperia and opening the purple chests and nodes marked with a white diamond on the minimap (dandelions, rock oil deposits) is the fastest way to stockpile a large amount in a short time, since there are hundreds scattered across the open world.

Are redemption codes still a good source of Dark Crystals?

Not really. Although historical codes existed that granted Dark Crystals (like TOF888), several guides note that Hotta Studio has gone a long time without publishing new codes, so it's not worth relying on this route to farm the currency regularly.

How to get free Dark Crystals in Tower of Fantasy