- Regrowth Incremental resource guide: Energy drives every stage, so funnel early upgrades into it.
- Reset layers (Stage, Fossil, Sap, Prestige, Opal) refund progress into permanent multipliers.
- Cash is the mid-game bottleneck — prioritize money multipliers in the upgrade tree and factory.
- Mining pickaxes scale from cash upgrades; craft a new pickaxe whenever iron allows.
- Rune shrines unlock huge buffs after Prestige 5 — open them once cash upgrades snowball.
Resource Overview: The Currency Chain
Every resource in Regrowth Incremental feeds the next one. Energy from your machines converts into crystals and jewels, jewels unlock stages, stages unlock life systems, and the chain keeps extending through fossils, sap, cash, gold, opal, ores, and beyond. Understanding which resource gates your current stage is the single most important skill in the game.
The progression video below walks the full route from the first extractor to the final island:
Video Highlights:
- Early Energy loop: machines, fast extractors, and the M-button mass upgrade
- First stage reset at 200 trillion Energy plus 250 Jewels
- Life, Fossil, Sap, Prestige, Barn, and Mining systems explained in order
- Late-game pickaxe crafting and rune shrine strategy
The core chain looks like this:
| Stage | Primary Resource | Unlocks | Reset Cost |
|---|---|---|---|
| 1 | Energy, Crystals, Jewels | Machines, perk tree, runes | 200T Energy + 250 Jewels |
| 2 | Life Shards, Fossils, Sap | Life creation, research, automation | 500 octillion Energy + 5M Cells |
| 3 | Cash, Gold Bars, Energy Shards | Prestige, upgrade tree | Gold bar conversion chain |
| 4 | Opal, Crystal Shards | Crystal barn, merging mini-game | Resets crystals and jewels |
| 5 | Ores, Stone, Gemstones | Mining, forge, mastery | Depth milestones |
| 6 | Uranium, special resources | Dungeons, final island | 2M Uranium + energy gate |
Never hoard a resource that is not gating your next unlock. If the next stage needs Energy and Jewels, dump every crystal and jewel upgrade into those two lines only.
Early Game: Energy, Crystals, and Jewels
The opening loop is simple but sets your pace for hours. Buy the basic Tycoon buttons from the tutorial, purchase machines, and hit the M button to mass-upgrade everything you can afford. Every machine tier multiplies Energy output.
Extractor priority order:
| Extractor | Tier | Output Boost | Notes |
|---|---|---|---|
| Basic Machine | Starter | Low | Buy duplicates at 4,000 Energy |
| Fast Extractor | Early | Moderate | First major jump past level 15 |
| Heavy Extractor | Mid | High | Unlocks crystal generation |
| Super Extractor | Late | Massive | Pushes output toward 1B+/second |
Crystals generate on a timer — claim them, then invest in crystal-tier upgrades to double their value. Jewels derive from crystals, so a bigger crystal stock means a bigger Jewel payout. Keep at least 250 Jewels banked for the first stage reset while the remainder funds upgrades.
The branching perk tree near the machines unlocks entire upgrade categories. Energy nodes should come first, but the XP node compounds — more XP means more crystals, which means more jewels.
Stage 2 Route: Life, Fossils, and Sap
Stage two opens life creation, cells, research, terraform, and monsters. This is where automation begins and where most players lose momentum by spreading upgrades too thin.
Rebuild Crystal Upgrades
After the stage reset, immediately repurchase the crystal and jewel upgrades — a recovery upgrade restores most of their lost boost automatically.
Generate Life Shards
Create life, work through the tier ladder, and unlock the second floor. Gears from the wrench system fund auto-buy frames and auto-buy upgrades.
Reset into Fossils
Reset life shards for fossils — target at least a few hundred, then spend on upgrades that boost fossils gained next reset and make fossils boost life shards.
Unlock Tree Cutting
Stand at the tree and click for wood and logs, then convert the log pile into your first Sap reset.
Hit 5 Million Sap
Sap perks, drop-tree apples, and tree levels multiply each other. Reaching 5M Sap triggers Stage 3.
Research generates passively here — one per second at base — and funds the second rune shrine later, so keep those upgrades rolling even while you AFK.
Fossils that boost life shards pay for themselves every cycle. Reinvest roughly half of each fossil payout into those two upgrades and bank the rest.
Stage 3 and 4: Cash, Prestige, and the Crystal Barn
Stage three introduces the money tree, prestige, gold bars, emerald, coins, energy shards, and special energy. Cash is the hardest currency here — allocate factory points aggressively toward it, with a typical split like Energy x32, Cash x8, and other lines x2.
Key systems compared:
Prestige
- Resets machines and level only
- Grants prestige points
- Buy Starter Kit first: x5 energy, x10 XP, x2 crystals
- Passive prestige-point upgrade is a top pick
Gold Bars
- Convert cash into gold, then gold plus cash into emerald
- First bar grants roughly x3 cash
- Required for later stage gates
Crystal Barn
- Barn tiers reset crystals and factory progress
- Opal generates per second after reset
- Quartz merging mini-game feeds blue steel
Barn tiers come quickly early — tier 1 through 4 mostly need patience and AFK time. Opal resets clear crystals, jewels, and barn contents but keep the tier, so each reset compounds. The quartz merging mini-game is both fun and the only source of the 500 blue steel needed to advance.
Earth runes can grant nearly x2 damage and x1.5 dig speed. Once cash upgrades are rolling, rune pulls accelerate dramatically — open a few each prestige cycle.
Stage 5: Mining, Forge, and Depth Strategy
Mining is where the game shifts from idle clicking to gear crafting. Jump into the mine, click to deal damage, and collect stone, gemstones, coal, and tin as you descend. Depth milestones change the ground layer (dirt to mud at 20, deeper layers beyond) and unlock better ores.
Mining progression table:
| Element | Role | Priority |
|---|---|---|
| Stone | Buys paths, mining upgrades | High early |
| Gemstones | Forge recipes, pickaxe stats | High |
| Iron | Best mid-tier pickaxes | Critical — save 600 for the jump |
| Tin / Coal | Forge fuel and damage boosts | Medium |
| Uranium | Stage 6 gate (about 2M) | Endgame goal |
The forge upgrades both your pickaxe damage and recipe unlocks. The iron pickaxe line is the biggest single leap — expect a jump from hundreds of damage to millions, then billions, letting you one-shot most ore nodes. Cash upgrades quietly multiply pickaxe damage, so never stop feeding the money tree.
Crafted pickaxes can be accidentally discarded. Check the equip slot before selling or replacing gear — a deleted pickaxe means regrinding the recipe materials.
Long-Term Optimization Checklist
Essential Resource Milestones:
- Reach 200 trillion Energy plus 250 Jewels for Stage 2
- Complete first Fossil reset and buy fossil-boosts-life-shards upgrades
- Earn 5 million Sap to unlock Stage 3
- First Prestige — purchase Starter Kit immediately
- Reach Barn tier 4+ and start Opal farming
- Craft the 600-iron pickaxe before deep mining
- Collect 2 million Uranium to reach the final island
Keep these supporting systems active in the background while grinding:
| System | Best Time to Engage | Payoff |
|---|---|---|
| Rune shrines | After Prestige 5 | Energy, crystal, damage multipliers |
| Terraform | After gem of life savings | Life gems, roots, faster research |
| Monster feed | Once life points reach millions | Dark crystals, evolution rewards |
| Roots | After auto-sap unlocks | Wood, perk points, life gems |
| Frost | Late Stage 5 | Passive stacking generation |
Reaching the final island takes well over 24 hours of playtime for most players. AFK sessions between reset layers are the intended pace — set up automation, walk away, and return to spend.
Resource Guide FAQ
Q: What is the most important resource in Regrowth Incremental?
Energy. Nearly every system either consumes Energy or scales from it, and stage resets always include an Energy requirement. Funnel early perk points and machine upgrades into Energy output before anything else.
Q: How do Jewels work in the early game?
Jewels derive from your crystal stock — the more crystals held, the larger the jewel payout. Spend surplus jewels on upgrades, but always bank 250 for the first stage reset requirement.
Q: Why is Cash so slow in Stage 3?
Cash generation only scales through the money tree, upgrade tree, factory allocation, and gold bar conversions. Prioritize the Starter Kit's money multiplier, then push factory points toward Cash — roughly x8 — while keeping Energy around x32.
Q: What is the best pickaxe crafting strategy for mining?
Save 600 iron before crafting your first serious pickaxe. That single craft can jump your damage from hundreds to millions. Continue upgrading the forge and rerolling recipes, since cash upgrades multiply pickaxe damage further.