The War with Grandpa Action Game Source Code

What is War with Grandpa?

War with Grandpa is a 20-level action combat game where you play as Grandpa, a tough, fearless fighter who has declared war on the street gangs threatening his territory. Each level puts Grandpa up against a group of gang members. Your mission is simple and clear: kill all the enemies in the level to move forward.

Different gang members show up in each level. Some are slow and easy to take down. Others are faster, tougher, and hit back hard. The enemy types change as levels progress, which means the player always has to stay sharp and adjust how they play.

The game runs through all 20 levels in a satisfying progression that gets harder with every stage. Each level is a self-contained fight arena you enter, you fight, you clear all enemies, and you unlock the next level. It is clean, direct, and completely addictive.

Key Features of Grandpa

Here is everything built into the War with Grandpa Unity source code:

• 20 Complete Levels — A full campaign of 20 individually designed combat levels. Each level has its own enemy layout, gang composition, and difficulty setting. Players fight through all 20 to complete the game, giving strong session depth and replay value.
• Diverse Enemy Gang System — Different types of gang members appear across the 20 levels. Enemies differ in speed, attack style, health points and fighting behaviour. As you progress through the levels, it introduces tougher and more aggressive enemy types, keeping the gameplay fresh throughout the full 20-level campaign.
• Wave-Based Enemy Spawning per Level — All or waves of gang members spawn per level, depending on the stage design. All enemies must be defeated to clear the level and unlock the next one. There can be no enemy left standing. Every fight must be finished.
• Grandpa Combat Character: The player character is Grandpa, a one-of-a-kind and memorable fighter, who moves, attacks and reacts with his own unique set of animations. His combat style is at the centre of every interaction in the game, and the character design gives the game a personality that is not generic action templates.
• Health System — When enemy gang members land hits, Grandpa’s health bar gets damaged. Later levels see enemies get more aggressive, and managing your health becomes more important. The health system makes every fight have real stakes.
• Level Completion & Unlock System – Complete a level to unlock the next level in the sequence. The progression is simple: complete Level 1 and get Level 2, then continue to Level 20. This setup gives players a clear objective and a rewarding sense of progression.
• Level Select Screen – All 20 levels are visible in the selection screen, with a clear indication of the locked and unlocked states. Completed levels are marked so you can see how far you’ve come in the overall campaign.
• Level Background Music - Each level comes with a background music that builds the tension and fits the pacing of the combat. Music intensity can shift based on gameplay state.

Controls

• Mobile (Android / iOS): Tap, drag, and swipe controls
• Web Version: Mouse click and drag interaction
• Very simple controls designed for all age groups
• No complex learning required

The gameplay feels like a casual mobile Play Store game with instant interaction mechanics.

Why is this game fun?

War with Grandpa is fun because it combines humour with simple gameplay. Players love the fast-paced actions, humorous reactions and simple challenges that do not need long learning or complicated skills. It is perfect for casual entertainment anytime.

Developer Perspective

For developers who want a complete, structured, level-based action game with a strong character concept and 20 fully designed stages, War with Grandpa is one of the most ready-to-deploy templates available on Source Plunge.

Here is exactly what you get:

• Full Unity Source Code — Complete project in C#. All 20 levels, all scripts, all character animations, all enemy behaviours, all audio, and all UI assets included. Nothing locked or compiled-only.
• Clean and Readable Code Structure – Well-structured and clear naming conventions. The project is very easy to navigate, understand, and modify for any developer with basic knowledge of Unity.
• Easy to Reskin Completely — Swap Grandpa with any character, replace gang member enemy designs, update level environments and backgrounds, rebrand the UI. The combat and enemy AI systems require no modification during a visual reskin.
• 20-Level Campaign Ready — All 20 levels are designed, scripted, and working. You get a full game, not a prototype with two demo levels.
• AdMob Built In Integration Banner ads, interstitial ads between levels and rewarded video ads for health refills or level retries are all coded ready for your AdMob account credentials.
• Publish-Ready at Version 1.00 — Tested through all 20 levels. Enemy AI. Health system. Level unlock logic and UI. All is working correctly. Branded and ready to submit. Stable.
• Play Store and App Store Export Ready — Standard Unity build pipeline covers both Android APK and iOS IPA from one project.
• Cross-Platform — Android, iOS, and WebGL browsers are all supported from the same codebase.

Whether you are launching your first mobile game, expanding an existing game portfolio, or delivering a branded action game to a client, War with Grandpa from Source Plunge gives you a complete, professional starting point that is ready to go live in days.

Use Cases

• Mobile game publishing companies.
• Gaming startups and indie developers.
• HTML5 gaming websites.
• App store portfolio expansion.
• Ad-monetized casual game platforms.
• Educational or entertainment game bundles.

How to Buy and Use This Game?

1. Download the full source code package.
2. Open the project in Unity.
3. Character and UI branding personalization.
4. your own ads or monetization setup.
5. Build and publish to the Play Store/App Store.
6. Get your branded game out quickly.

With Source Plunge, it is fast, simple and beginner-friendly.

Customization Options

One of the biggest benefits of this project is the ease of customization:

• Change skins and characters.
• Change environments and backgrounds.
• Change UI design.
• Change the difficulty of the game.
• New levels prank added.
• Rebrand completely for new game releases.

Good for reskin developers using Source Plunge assets.

Why Choose Source Plunge?

Source Plunge gives you ready-to-use Unity game source codes that are easy to edit, reskin, and publish. All projects are clean, optimized, and built for fast launch.

You don’t need advanced coding skills. Just open, customize graphics, add your branding, and publish your game on the Play Store or App Store. Games are ad-supported, monetization-ready, and optimized for smooth play on devices.

Source Plunge is simply a time saver, a hard work reducer, and a way to start earning sooner with pre-built games.