Recommended starting position
Engineer is the general default for most players. Its value compounds through faster progress, reduced costs, repeatable rewards, and alliance support. Keep the growth engine working unless your account and alliance role clearly benefit more from War Leader.
🛠️ Engineer Profession visual guide
Open the full-size visual guide.Season 2 Engineer main-tree unlock roadmap
Use this as the quick unlock map for the main Engineer tree through the Season 2 cap. Branch prerequisites still matter, so the live Profession Hall remains the final check before spending points.
UnlockSkill ASkill B
Lv. 1Rapid Production＋ Outstanding Contribution
Lv. 5Siege Mastery＋ Extra Meal
Lv. 10Research for Free＋ Build for Free
Lv. 15Build Now＋ Research Now
Lv. 20Rally Rush＋ Siege Banner
Lv. 25Siege Inspiration＋ Friendly Aid
Lv. 30Cooperative Construction＋ Cooperative Research
Lv. 35Resource-Saving＋ Recycling
Lv. 40Medical Aid＋ Buddy Shield
Lv. 45Drone Supply＋ Fearless Defense
Lv. 50Random Visitors＋ Durability Mine
Lv. 55One More＋ Support Boost
Lv. 60Efficient Gathering＋ First Aid Expert
Lv. 65Battlefield Cleanup＋ Master Builder
Lv. 70Instant Gathering＋ Monster Tracking
🟦 Facts
- Efficient Gathering increases Gathering Speed—not gathering time.
- Battlefield Cleanup currently names Ironhead, Glutton, Miser, and Doom Elites as the enemies that trigger extra Food, Iron, and Coin gains.
- Outstanding Contribution increases Alliance Contribution Points earned from technology donations and helping allies, but it does not affect contribution rankings.
- One More gives the Daily Task points chest a chance to double rewards. Support Boost increases the amount of help time applied per Alliance Help action.
🟩 BlackBar Gaming recommends
- Growth-first core: favor Rapid Production, Build for Free, Research for Free, Build Now, Research Now, Cooperative Construction, Cooperative Research, Resource-Saving, Recycling, and Master Builder while account growth is your bottleneck.
- Strong recurring value: Extra Meal, Drone Supply, One More, Support Boost, and Instant Gathering can pay off repeatedly when you actually use their effects and cooldowns.
- War / role tools: Siege Mastery, Rally Rush, Siege Banner, Friendly Aid, Medical Aid, Buddy Shield, Fearless Defense, Durability Mine, and First Aid Expert become more valuable when your alliance has a specific plan for them.
- Usually later unless they solve a real bottleneck: Outstanding Contribution, Siege Inspiration, Efficient Gathering, Random Visitors, Battlefield Cleanup, and Monster Tracking.
Season 2 seasonal column
UnlockSkillCurrent detail
Lv. 1Combat Experience3 levels shown; exact effect still needs a current tooltip.
Lv. 10Building Inspiration IAt skill Lv. 3: +15% Profession EXP from upgrading seasonal buildings.
Lv. 15Winter Wonderland1 level shown; exact effect still needs a current tooltip.
Lv. 25Double ExchangeAt Lv. 1: exchange 5,000 for 10,000 seasonal resources; 47.5-hour cooldown. Skill has 3 levels.
Lv. 30FirebombAt Lv. 3: +45°C in a 9×9 area for 5 minutes; 23.5-hour cooldown; non-stackable.
Lv. 35Professional InsightsAt Lv. 2: gain 4% of current-level Profession EXP, capped at 40,000; 23.5-hour cooldown. Skill has 5 levels.
Lv. 40Intense OverdriveLv. 1 adds +2°C to High-Heat Furnace Overdrive; Lv. 2 shows +4°C. Skill has 3 levels; final value not yet photographed.
Lv. 45Gather for Warmth+100% efficiency when warming allies; 1 level.
Lv. 55FrostbombAt Lv. 1: −5°C in a 9×9 area for 10 minutes; 47.5-hour cooldown; non-stackable. Skill has 3 levels.
Lv. 60Frost MineAt Lv. 1: place in the original Warzone; triggered target loses 5°C and freezes. Lasts 24 hours, 24-hour cooldown, stores up to 3. Skill has 3 levels.
🟩 BlackBar Gaming recommends
- Use the main Engineer tree for long-running growth efficiency and use the Season 2 seasonal column for season-specific heat, Profession EXP, and tactical tools.
- Use Professional Insights and other repeatable active skills consistently when learned; unused cooldowns produce no value.
- Building Inspiration I is strongest while seasonal buildings are still being upgraded.
- Buy Firebomb, Frostbomb, Frost Mine, and Intense Overdrive for an actual heat or war plan—not merely because another player selected them.
When to remain Engineer
- Seasonal construction and research still consume meaningful resources or time.
- You reliably use Engineer's repeatable production and reward skills.
- Your alliance needs heat, construction, research, or resource support more than another combat specialist.
🟥 Warning
- Do not copy fixed target numbers blindly. Skill dependencies, resets, available points, alliance role, and how often you use active cooldowns can change the best allocation.
- For Season 2, this roadmap stops at Profession Level 70. Skills shown at Lv. 75–100 in later-season references are intentionally excluded from the Season 2 build.
- Only values explicitly listed in the guide are shown; use the skill screen for any values not listed.
- Do not publish a fixed Level 70 Skill Point total from Profession Level alone.