How to Unlock All 121 Achievements in Dead Cells+

Achieving 100% completion in Dead Cells+ is a monumental undertaking that spans hundreds of hours of gameplay. With 121 distinct achievements to unlock, ranging from simple environmental interactions to grueling, high-difficulty "flawless" boss kills, the path to the Platinum trophy requires more than just raw mechanical skill—it requires an optimized, systematic approach. This guide serves as your roadmap to navigating the castle’s depths, streamlining your blueprint collection, and conquering the dreaded 5 Boss Stem Cell (BC) difficulties.

The Strategy of Efficiency: Why Custom Mode is Your Best Friend

Many new players shy away from Custom Mode, fearing it might disable achievements. In Dead Cells+, however, Custom Mode is designed for the completionist. As long as you do not disable too many items (which keeps the achievement-locking "lock" icon inactive), you can curate your loot pool to maximize the consistency of your runs.

To unlock specific weapon-based achievements, use Custom Mode to restrict your gear to only the items required for the challenge. This removes the RNG frustration of hoping for a specific drop in a shop or chest. By narrowing your item pool, you ensure that your build is optimized for the specific biome or boss you are targeting, significantly reducing the number of runs required to hit your milestones.

Prioritizing Blueprint Collection and Extraction

The most time-consuming phase of the Dead Cells+ achievement hunt is gathering blueprints. Because many items are gated behind rare enemy drops, you must stop relying on luck and start using the Hunter’s Grenade.

1. Identify the Target: Check the Wiki or your in-game log to see which enemy drops the blueprint you need.
2. Equip the Hunter’s Grenade: Enter a biome where that enemy is guaranteed to spawn.
3. Extract the Blueprint: Use the Grenade to transform an enemy into an Elite, then use the Blueprint Extractor once their health is low.
4. Finish the Run: Note that you must reach the next Collector’s door or finish the run for the blueprint to be permanently saved. If you die before reaching the Collector, the blueprint is lost.

Expert Tip: Always prioritize unlocking the "Homunculus Rune" early, as it allows you to detach your head to scout areas and extract blueprints from a distance, keeping you safe from dangerous traps or crowded rooms.

Mastering Boss Stem Cell (BC) Progression

The 5BC achievements represent the pinnacle of Dead Cells+ difficulty. You cannot rush these; you must treat each BC level as a training ground for the next.

• 0BC - 2BC (The Foundation): Focus on learning enemy move sets and mastering the "parry" mechanic with a shield. Even if you prefer dual-wielding, learning to parry is essential for survival in later stages.
• 3BC (The Sustain Check): Healing becomes scarce. Start incorporating mutations like Gastronomy (which doubles the healing from food) into your build.
• 4BC - 5BC (The Aggression Phase): Enemies teleport to you, and malaise is constant. Your build must shift from "all-in" damage to "damage + crowd control." Use items like the Ice Shards or Wolf Trap to freeze enemies in place before they can swarm you.

Tackling the "No-Hit" and Flawless Challenges

The most prestigious achievements in the game are the Boss Flawless trophies. These require you to defeat bosses without taking a single hit.

• Practice in Boss Rush: Access the Boss Rush mode from the main hub. This allows you to practice against bosses repeatedly without having to play through an entire 30-minute run just to reach them.
• The "Glass Cannon" Swap: When attempting a flawless boss run, feel free to use your weakest weapons if they provide the best utility (like freezing or burning effects). You don't need a "balanced" build; you need a "specialized" build that exploits the boss's specific weakness.
• Disable Complex Biomes: For biome-specific achievements, run them on 0BC. There is no shame in lowering the difficulty to focus purely on environmental puzzles or specific room discoveries.

Essential Achievement Categories & Roadmap

To avoid burnout, categorize your remaining 121 achievements and rotate your focus based on your current mood:

Common Mistakes to Avoid

1. Ignoring the Legendary Forge: Your primary goal in early runs should be depositing cells into the Legendary Forge. Getting your gear to "+" and "++" quality is more important than unlocking new, niche weapons early on.
2. Over-relying on one playstyle: Dead Cells+ punishes players who refuse to adapt. If you only play "Tactics" builds, you will eventually hit a wall where you lack the health pool to survive 5BC. Force yourself to experiment with all three colors (Brutality, Tactics, Survival).
3. Dying with Blueprints: Never be greedy. If you have an unspent blueprint and a rare item, it is almost always better to play safely and reach the next Collector’s door rather than pushing for a minor stat boost in a dangerous biome.

Final Thoughts on the Completionist Grind

Reaching 121 achievements is a test of patience. When you hit a wall—whether it is a difficult boss or a frustratingly rare blueprint drop—take a break. The game is designed to be played in bursts. By utilizing Custom Mode intelligently, focusing on the Legendary Forge early, and practicing boss patterns in the Boss Rush, you will systematically dismantle the challenges of Dead Cells+ until that final achievement pops. Keep your movement fluid, your parries timed, and never underestimate the value of a well-placed trap.