Learn game development free

Learn the system behind the decision.

A free open notebook for game development. Scan one concept, then follow the connections when you want more depth. Start with a sticky problem tonight - session budget, soft currency, or first-session loop.

60-Second SnapshotsImmediate CheckpointsLive SimulatorsApply Tonight

01Economy Design~6 min
Game economy flow: from goal to feedback
Trace one invented resource from goal through choice to a readable signal.
Source→Decision→Signal
```
flow Goal {
  source -> decision
  decision -> signal
}
```
Open topic
02Game Design~6 min
Core loop
Name the repeating intent → action → result → re-entry cycle players must feel.
Intent→Result→Re-entry
```
loop Core {
  intent -> action
  result -> reentry
}
```
Open topic
03Economy Design~7 min
Soft and hard currency
Draw the trust boundary between earned and paid currency.
Hard→Soft→Choice
```
trust SoftHard {
  hard -> soft
  soft -> decision
}
```
Open topic
04Unity & Development~6 min
Prefer events over Update ownership
Keep reaction ownership on the event that caused the change, not a polling Update.
Emit→Listen→React
```
signal Event {
  emit -> listeners
  no Update ownership
}
```
Open topic

1. Game economy flow: from goal to feedback
2. Core loop
3. Soft and hard currency
4. Prefer events over Update ownership

1. Game economy flow: from goal to feedback
2. Core loop
3. Soft and hard currency
4. Prefer events over Update ownership

1. Game economy flow: from goal to feedback
2. Core loop
3. Soft and hard currency
4. Prefer events over Update ownership

1. Game economy flow: from goal to feedback
2. Core loop
3. Soft and hard currency
4. Prefer events over Update ownership

Latest game development news

What changed, what is planned, and what to do next

Short, primary-source-backed briefs that connect time-sensitive updates to durable learning.

Unity & Development · August 29, 2026

Unity 6.1 mobile runtime: GPU Resident Drawer cuts draw calls by 60%

Unity's August 2026 runtime update officially promotes the GPU Resident Drawer from desktop-only to mobile Vulkan (Android) and Metal (iOS) targets. By keeping mesh transform data in GPU VRAM and executing indirect draw calls directly on hardware, CPU render submission overhead is reduced by up to 60%. For mobile developers targeting 60 FPS on mid-tier hardware, this dramatically expands your static batch budgets.

Read the brief

Browse all News Briefs

Start with a practical guide

Practical guides

Longer intent guides for shipping, success signals, and currency trust - then jump into the matching lessons.

Reviewed 29 July 2026

What Game Should You Make First?

The best first project is not simply the easiest genre. Choose an idea with one complete loop, one deliberate stretch skill, and a dependency shape you can finish.

Open guide

Reviewed 29 July 2026

How to Scope and Ship Your First Mobile Game

Skip the install-checklist fantasy. Scope a first mobile game by protecting one complete loop, cutting everything that needs its own tutorial, and shipping only when a stranger can finish one sitting without a coach.

Open guide

Reviewed 25 July 2026

Mobile Game Success Criteria

Do not start with a D1 scoreboard. Start with whether a stranger can finish one loop, then read return and stability only after that gate clears - and send each bad signal to one lesson, not five new features.

Open guide

Reviewed 25 July 2026

Soft vs Hard Currency: Design the Trust Boundary

Soft and hard currency are a trust boundary, not two coin skins. Ask whether a misspend can be earned back, keep conversion one-way, and price ordinary decisions in soft so play stays choosable.

Open guide

Hybrid-Casual Architecture: From 15s Action to Day-30 Retention

How to marry ultra-simple arcade inputs with mid-core RPG progression curves, achieve 42% Day-1 and 12% Day-30 retention, and balance Rewarded Video ads with IAP monetization.

Open guide

Idle Arcade Economy Blueprint: Logistics, Stacking & Shifting Bottlenecks

How to balance supply generators, porter carrying capacities, and cashier sinks using dynamic bottleneck shifts and exponential pricing formulas.

Open guide

Satisfying Mobile Puzzle Blueprint: Level Fail Rates, Win-Streaks & Near-Miss Math

How to tune sawtooth level difficulty curves (0% fail on onboarding to 45% on Super Hard gates), balance Win-Streak booster loops, and monetize 5 Extra Moves ethically.

Open guide

Interactive Game Design Tools

Test Your Economy Before Writing Code

Stress-test daily active session inflows, exponential upgrade pacing, and inflation risk right in your browser.

Player Inflow Parameters (Sources)

Daily Sessions4 / day

Runs per Session3 runs

Earn per Run250 coins

Rewarded Ad Opt-in Rate50%

Sink & Progression Parameters

Base Level 1 Cost400 coins

Cost Multiplier ($Base \times M^N$)1.15x

Healthy Economy Equilibrium

Players upgrade steadily without hoarding excess currency or hitting progress walls.

Daily Inflow3,900coins / day

Day 30 UpgradesLvl 27achieved tier

Day 30 Reserve3,570leftover buffer

30-Day Progression Projection

Milestone	Total Earned	Total Sunk	Upgrade Tier	Wallet Balance
Day 1	3,900	3,502	Lvl 6	398
Day 3	11,700	11,601	Lvl 12	99
Day 7	27,300	26,030	Lvl 17	1,270
Day 14	54,600	47,525	Lvl 21	7,075
Day 30	117,000	113,430	Lvl 27	3,570

Learn tonight

Three sticky economy problems: open one and apply it the same evening.

Economy Design

Design a one-session economy budget

Plan earn and spend for one sitting so leftover and starvation stay readable.

session
economy

Economy Design

Soft and hard currency

Draw the trust boundary between earned and paid currency.

systems
economy

Game Design

Teach the loop in the first session

Rehearse the core loop early so the first sitting feels like a game, not a feature tour.

onboarding
loop

Featured learning paths

Start an ordered learning path

Follow topics in the order they build on each other - open the full roadmap any time.

Economy Design
Define a system goal
Economy Design
Game economy flow: from goal to feedback
Economy Design
Source and sink balance
View 7 more topics

Unity & Development
What Unity Actually Is (Editor, Engine, Project)
Unity & Development
GameObjects and Components: Unity's Building Blocks
Unity & Development
Scenes and Hierarchy: Where Your Game Actually Lives
View 3 more topics

Choose a field

Start with a path or pick one topic

Free topics and paths for learning game development. Paths keep the sequence. Cards give a focused answer when you already know the question.

From Eonevolve

The studio behind the learning platform

Official Eonevolve titles on mobile stores.

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4.7Rating
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Roguelike dungeon action with heroes, builds, and bosses.

4.4Rating
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Multiplayer motorcycle riding with tracks and customization.

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Learn the system behind the decision.

Game economy flow: from goal to feedback

Core loop

Soft and hard currency

Prefer events over Update ownership

What changed, what is planned, and what to do next

Unity 6.1 mobile runtime: GPU Resident Drawer cuts draw calls by 60%

Practical guides

What Game Should You Make First?

How to Scope and Ship Your First Mobile Game

Mobile Game Success Criteria

Soft vs Hard Currency: Design the Trust Boundary

Hybrid-Casual Architecture: From 15s Action to Day-30 Retention

Idle Arcade Economy Blueprint: Logistics, Stacking & Shifting Bottlenecks

Satisfying Mobile Puzzle Blueprint: Level Fail Rates, Win-Streaks & Near-Miss Math

Test Your Economy Before Writing Code

Mobile Economy & Inflation Projection

Healthy Economy Equilibrium

30-Day Progression Projection

Learn tonight

Design a one-session economy budget

Soft and hard currency

Teach the loop in the first session

Start an ordered learning path

Economy foundations

Define a system goal

Game economy flow: from goal to feedback

Source and sink balance

Unity Engine Foundations

What Unity Actually Is (Editor, Engine, Project)

GameObjects and Components: Unity's Building Blocks

Scenes and Hierarchy: Where Your Game Actually Lives

Start with a path or pick one topic

The studio behind the learning platform

BER3D

Heat Rush

Motorcycle Sim: Multi