Small games, and the code behind them.
Codesarray makes calm mobile games for Android, and short videos and articles that show how code works, one idea at a time.
Games
Open, play a round, put the phone down. No accounts, and every game plays offline.
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Blockfall
A calm 8x8 block puzzle with a daily challenge and a Play Games leaderboard.
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Paws & Perils
A cute paper cut-out roguelike with an idle RPG underneath: pick a hero, walk the trail, choose your path at every fork.
Coming to Google Play About Paws & Perils -
Synapsy
A calm daily memory game: pairs, sequences, grids and spot the change, with a three-minute Daily Workout.
Coming to Google Play About Synapsy
Videos
Coding, algorithms and data structures, one language at a time. Every example on screen is real code with its real output. Python comes first.
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Video2 min 54 s
Hello, Python: install Python 3.14 and write your first program
Install it, run code two ways, and learn the one rule that makes Python look different from every other language.
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Video3 min 17 s
Variables and types: the five basic types and how to convert them
int, float, str, bool and None, how to ask Python what type a value is, and why "3" + 4 is an error until you convert.
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Video3 min 33 s
Control flow: if, elif, else, for, while, break and continue
How a program decides and repeats, with a chained comparison, range(), and the else a loop can have.
Articles
The same lessons, written down, with code you can copy.
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PythonBeginner
Python if else and loops: if, elif, for, while, break, continue
How a program decides with if, elif and else, repeats with for and while, and stops or skips a round with break and continue.
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PythonBeginner
Python int overflow: why 2 ** 1000 just works
Most languages keep a whole number in 64 bits and overflow past it. A Python int has no limit, and the reason also explains why floats still do.
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PythonBeginner
Python type() function: why 3, 3.0 and "3" are different
Three values that look alike are an int, a float and a str. type() shows the difference, and mixing them shows why it matters.
Work
Codesarray is created by Anand Rathore, a software developer. The day job, for more than five years, has been payment systems.
Payment gateways, settlement and reconciliation: software where every write is audited and a wrong number is somebody's money. That work covers the whole path, from gathering requirements and designing the system to building, deploying and running it.
Open to freelance and contract projects, to full-time roles, and to collaborations and sponsorship on the YouTube channel. Remote only.
- Experience
- 5+ years in fintech
- Backend
- Python, Java, Django, Spring Boot, Node.js
- Data
- PostgreSQL, MySQL, MongoDB, Kafka
- Frontend
- React, TypeScript, Tailwind CSS
- Also
- Android games in Kotlin
- Where
- India, working remotely