Black Jacket Achievements: All 42, Ranked by Rarity

Forty-two Black Jacket achievements exist, and Steam's own live completion data settles which ones are actually rare instead of just guessed at: clearing Journey difficulty 21, the game's final endgame tier, sits at 1.6% global completion, making it by a wide margin the hardest achievement in the game to earn.

TL;DR: Black Jacket has 42 achievements total, confirmed through Steam's achievement API. The rarest is clearing Journey difficulty 21 at 1.6% global completion, followed by Propagation (3.5%), Sharpened Tool (7.6%), and Haze (7.9%). The four hidden suits, Flames, Teeth, Greed, and Tumors, each unlock through their own dedicated achievement: burning 15 cards, awakening 20 cards, discovering 70 cards, and winning 50 encounters respectively. The most common achievement, Sleeve Size 1, sits at 83% completion.

How many achievements are in Black Jacket? (quick answer)

42, split across card-mechanic milestones, story and relationship beats, journey-difficulty clears, and the four hidden-suit unlocks. Steam's live global completion data shows exactly how rare each one actually is, rather than relying on a guess.

Key takeaways

• 42 total achievements, confirmed through Steam's own achievement API, not a community estimate.
• The rarest achievement is clearing Journey difficulty 21 at 1.6% global completion.
• The four hidden suits, Flames, Teeth, Greed, and Tumors, each unlock through a dedicated achievement rather than general playtime.
• The most commonly earned achievement, Sleeve Size 1, sits at 83% completion, essentially every player who starts a run.
• Achievement rarity correlates directly with the game's own difficulty curve: journey-clear achievements get rarer as the difficulty number climbs.

The rarest Black Jacket achievements

Journey difficulty 21 clear, 1.6% global completion. This is tied directly to the endgame Journey system covered in this site's own Journey guide: difficulty 21 is the hardest of all 21 Journeys, and the completion rate reflects how few players push that far. If you're chasing full completion, this is the achievement to plan your build around last, not first.

Propagation, 3.5% global completion. One of the rarer non-journey achievements, tied to a specific in-run condition rather than raw playtime.

Sharpened Tool, 7.6% global completion, and Haze, 7.9% global completion. Both sit in the same rare tier as Propagation: uncommon enough that most players won't stumble into them without deliberately working toward the condition.

The four hidden suits and their unlock achievements

Black Jacket's four hidden suits, Flames, Teeth, Greed, and Tumors, aren't unlocked through general progress. Each one has its own specific achievement gate:

• Flames unlocks by burning 15 cards over the course of your runs.
• Teeth unlocks by awakening 20 cards.
• Greed unlocks by discovering 70 cards.
• Tumors unlocks by winning 50 encounters.

None of these require finishing the game or reaching a specific Journey difficulty. They're cumulative milestones that add up across however many runs it takes, which means a player grinding lower-difficulty Journeys for other reasons will likely unlock most or all four suits without specifically farming for them.

Whisper and Hollow card effects, the kind of specific in-hand condition several of the rarer card-mechanic achievements are built around.

GODEEPER: Once a hidden suit unlocks, deciding whether to actually build around it is a separate question. Black Jacket Suit Tier List: All 8 Ranked →

The most common achievements

Sleeve Size 1, 83% global completion. This is close to a universal achievement: nearly every player who starts a run earns it, which suggests it's tied to a basic, unavoidable early action rather than anything approaching a challenge.

Tattered Table, 71.2% global completion, and Lost Finger, 68.5% global completion. Both are common enough that most players clear them naturally within their first several runs, without any dedicated effort.

What the card, story, and journey achievements actually cover

Beyond the rarity extremes, Black Jacket's achievement list breaks into a few clear categories. Card-mechanic achievements reward specific in-hand outcomes: playing a card out of your sleeve to land exactly 21, winning with a Flush, and winning with cards from five different suits in the same hand all fall into this group. These are the achievements worth planning a single run around rather than expecting to stumble into, since they depend on a specific hand composition coming together rather than general playtime.

Story and relationship achievements track narrative milestones, including reaching relationship level 2 with Niv and a specific story beat tied to confronting the game's antagonist. These happen naturally as part of playing through the game's narrative content, so there's no real farming strategy for them beyond continuing to play.

The relationship tracker for Niv, whose level-2 affinity milestone is one of the game's story-tied achievements.

Journey achievements track clearing specific difficulty tiers, including Journeys 2, 3, 7, and 8 individually, building up toward the difficulty 21 clear that sits at the top of the rarity list. The gap between clearing Journey 8 and clearing Journey 21 is where most players who stop chasing achievements actually stop: the individual tier clears in the middle of that range earn steadily and don't require anything close to the build refinement the final tier does. If you're working through the list in order, expect the achievement pace to slow considerably once you're past the mid-tier Journey clears and into the range where difficulty 21 becomes the realistic next target.

GODEEPER: The Journey system these achievements track is explained in full, all 21 tiers, in the dedicated guide. Black Jacket Journey Guide: All 21 Journeys →

Tips for working toward full completion

• Don't chase the hidden-suit achievements directly. Play normal runs at whatever difficulty suits your build, and the cumulative burn/awaken/discover/win counts will clear themselves over time.
• Save the Journey difficulty 21 clear for last. At 1.6% completion, it's the genuine endgame test of the achievement list, not something to attempt before your build and card knowledge are both solid.
• The card-mechanic achievements (specific hand types, sleeve plays) are worth targeting deliberately in a single focused run rather than hoping they happen naturally, since they depend on a specific hand coming up rather than general progress.
• Track your global completion percentage against your own achievement list in Steam's overlay. Anything you're missing under 10% global completion is worth researching individually before assuming it'll happen passively.
• Pace the hidden-suit grind across multiple sessions rather than one marathon run. Burning 15 cards, awakening 20, discovering 70, and winning 50 encounters are all cumulative across your account, not tied to a single run, so there's no penalty for spreading the counts out.
• If a specific achievement's global percentage looks low but you're not sure why, check whether it's tied to a game mode or difficulty setting you haven't tried yet rather than assuming it requires unusual skill. Several of the rarer achievements gate behind content most players simply haven't reached, not content they've attempted and failed.

How rarity data changes what "100%" actually means

Global completion percentages matter for more than bragging rights. A player deciding whether full completion is realistic can look at the 1.6% figure on the Journey 21 clear and know exactly what they're signing up for: a genuine skill and build-optimization test, not a long grind that resolves itself with enough hours. Compare that to an achievement sitting at 40-50% completion, which usually means most players who play seriously enough to unlock most of the list will get there without dedicated effort. Reading the completion percentage before deciding how to prioritize your remaining achievements saves time that would otherwise go into chasing something either easier or harder than it looks from the achievement description alone.

Frequently Asked Questions

How many achievements are in Black Jacket? 42, confirmed directly through Steam's own achievement API. That includes card-mechanic achievements, story/relationship milestones, journey-difficulty clears, and the four hidden-suit unlocks.

What is the rarest achievement in Black Jacket? Clearing Journey difficulty 21, the game's hardest tier, sits at just 1.6% global completion on Steam. It's tied directly to the endgame Journey system and is by far the least-earned achievement in the game.

How do you unlock the hidden suits in Black Jacket? Each hidden suit has its own achievement-gated unlock: Flames requires burning 15 cards, Teeth requires awakening 20 cards, Greed requires discovering 70 cards, and Tumors requires winning 50 encounters.

What is the easiest Black Jacket achievement to get? Sleeve Size 1, at 83% global completion, is the achievement almost every player who starts the game earns. Tattered Table (71.2%) and Lost Finger (68.5%) are the next most commonly earned.

Do you need to 100% Black Jacket to unlock all four hidden suits? No. The hidden-suit achievements are specific milestones (burning, awakening, discovering cards, and winning encounters) that happen naturally through extended play, not a full completion requirement. You'll likely unlock most or all suits before finishing every other achievement.

Related Reading

• Black Jacket Deck Building Guide: Best Suits and Combos 2026: Black Jacket deck building guide: best suit combinations, how card removal works, when to buy
• Black Jacket Complete Guide 2026: All 21 Journeys, Suits: Black Jacket complete guide hub: suits, deck building, Soul coin economy, Journey progression, boss strategies,
• Black Jacket Review: The Roguelite That Earns Its Tension: the full verdict on whether the game is worth the time this achievement list represents.

References

• Black Jacket on Steam
• Mi'pu'mi Games official site