Fish Idle 2 blends idle progression, fishing, automation, crafting, and exploration into one continuous loop. Your goal is to automate your fishing empire, unlock new regions, craft stronger gear, and steadily push toward rare chests and high-level equipment. While the game rewards active play, the automation systems are the real backbone of long-term progress.
Fish Idle 2 Underwater Mystery Beginner Guide Wiki
Achievement
While the achievement list looks large, most of them fall into four categories: Time Played, Chests, Leveling, and Crafting. Here’s how you should handle them for efficient completion.
1. Time Played Achievements
These only require the game to be running, but don’t start idling too early. First unlock automation so your AFK time becomes productive.
Recommended approach:
• Unlock bot stations before you begin long idle sessions
• Place resource collectors near valuable spawn points
• Leave your game running while doing something else – aim for fishing productivity over raw online time
By the time you reach long-hour milestones, you should be earning resources even without interaction.
2. Chest-Based Achievements
Chests are your main source of crafting materials and rare upgrades. There are two realistic paths to progress: active farming or using the marketplace.
Best ways to earn chests without spending:
• Complete daily quests
• Participate in events
• Target enemies and areas that provide higher tier chest rewards
Higher tier chest achievements will take time. Do not open them the moment you earn them unless you are pushing for immediate gear upgrades. Sometimes saving them until you unlock better crafting tiers provides more value.
3. Leveling Achievements
Experience comes primarily from selling fish and completing quests. Do not rush levels just for the achievement. Level milestones naturally align as you progress through zones.
General leveling pace:
• Levels 1–6 will happen quickly as you learn mechanics
• Beyond level 8, experience pacing slows and requires more efficient farming
• Quests become increasingly important to speed up gains
Focus on zone progression and your levels will naturally follow.
4. Crafting Achievements
This is the most resource-hungry achievement category, and usually the final set players complete. Crafting requires specific materials that drop from chests, so your chest progress and crafting progress are tied together.
Smart crafting approach:
• Avoid crafting every item tier early. Only craft what will upgrade your efficiency.
• When you reach late game, stockpile materials before pushing mass-craft achievements.
• If using the marketplace, prioritize buying materials that bottleneck your progress rather than buying random chests.
Mass crafting achievements will take time. Approach them steadily rather than rushing.
Early Game Progression: What to Do First
First Steps
• Catch any fish, sell it once, and unlock your first achievement.
• Explore the area around the lighthouse and take note of the roe-exchange shop. Avoid exchanging roe early; it becomes valuable later.
Core Early Priorities
Your first goal is to progress to a point where fishing becomes automated so your time is better spent managing upgrades rather than manually collecting.
Focus on:
- Increasing the number of fishing rods
- Improving fishing speed
- Unlocking basic automation (bots)
These three upgrades accelerate almost everything you do afterward.
Automation and Idle Farming
Once bot stations are unlocked, your gameplay changes dramatically. Bots allow you to collect fish or deliver resources without manual effort.
Best early bot usage:
• Delivery bots are more impactful than fishing bots early on
• Place bots in areas with consistent fish spawns
• Leave your character in an active area before going AFK
Automation turns time-played achievements into productive sessions rather than wasted hours.
Smart Spending and Market Strategy
The marketplace can speed up your progress, but it is easy to overspend on the wrong upgrades.
Black Market Priority
Focus on upgrades that raise your direct earning potential:
- Attack power
- Fishing speed
Avoid spreading your spending across too many minor upgrades.
Green Market Strategy
Unlock the 250-fish pass early. It allows nearly indefinite farming loops and fuels mid-game progression. After that, push attack upgrades again.
Boss Strategy
Bosses are manageable with the right approach, even if your gear isn’t strong.
Effective method:
• Pull the boss towards your base rather than fighting it far away
• Use delivery bots to carry healing supplies back to you
• Fight within healing range to sustain through the battle
This strategy allows you to defeat bosses much earlier than your stats might normally allow.
Farming in the Winter Biome
Once you reach the winter zone, progression shifts again.
Where to farm:
• Head east to target golden fish spawns
Winter Market upgrade priority:
- Regeneration
- Fishing speed
- Winter coin income
Skip ship heat capacity upgrades early; the benefit is small for the cost required.
Fish Idle 2 rewards long-term play rather than rushed progression. Treat each new mechanic as an investment in better automation. If you prioritize upgrades that increase efficiency and resource flow, achievements will come naturally as a result of smart play.