DDS2 has several achievements with hidden unlock conditions. By cross-referencing Steam community guides (including the "EN Achievements 100%" guide) and tracking sites, we can piece together the requirements for the hardest-to-unlock achievements.
DDS2 Hidden Achievement Guide: Rarest Unlocks

Achievements with Unknown Conditions

Several achievements on Steam Hunters and PlayTracker have descriptions that do not clearly state their unlock conditions:

AchievementPossible Trigger (Community Guesses)Rarity
Never let you downComplete a specific quest chainVery rare
A warm placeRelated to hideout upgrades or specific locationVery rare
Home sweet homeFully upgrade a hideoutRare
Side hustleComplete all available side missions0.6%
500 CIGARETTESSell 500 cigarettes total0.7%

DLC Achievements

The Casino DLC (released June 2025) adds additional achievements. The Steam community 100% guide notes that one involves killing the casino boss with a bomb and paying B4,000,000 afterward.

AchievementDLCCondition
Casino-relatedCasino DLCComplete casino missions
Casino bossCasino DLCEliminate boss with bomb, pay B4,000,000

100% Completion Strategy

Based on the Steam community "EN Achievements 100%" guide:

  1. Story first -- Progress through the main questline to unlock base achievements
  2. Side content -- Complete all side missions and optional objectives
  3. Grind milestones -- Sell cigarettes (500), glass bottles (100) for misc achievements
  4. Street Cred -- Reach level 4 for "I Am The One Who Knocks"
  5. DLC content -- Casino DLC has its own achievement set
  6. Community guides -- The 100% achievement guide references specific quest requirements including paying B4,000,000 for a late-game unlock

Achievement Difficulty Tier List

TierAchievementEstimated Time
EasyI Am The One Who Knocks (Street Cred 4)10-15 hours
MediumEnvironmentalist (100 bottles)15-20 hours
Hard500 CIGARETTES30-40 hours
Very HardSide hustle40-60 hours
Extreme100% (all achievements + DLC)80-100 hours

Community Resources

Community Verification & Resources

Data values may shift with patches. Cross-check against community resources before building your strategy.