ATA AKDEMİR

Mergeball is my first commercially released game. I handled every part of it myself: programming, art, publishing, monetization and post-launch updates.

Development

• Built the game in Unity (C#) on data-driven ScriptableObjects, with physics-based merging, a New Input System spawner and a camera fitter that supports every phone and tablet aspect ratio.
• Hand-drew all eleven balls in Photoshop.
• Optimized for low-end Android devices with object pooling, physics tuning and ASTC texture compression.

Publishing & Live Ops

• Took the game through the full Google Play Console pipeline: closed testing with 12+ testers, production access, Data Safety and privacy policy.
• Shipped versioned updates from 1.0 to 1.9, adding an online leaderboard, device compatibility fixes and in-app review.
• Integrated a Google Play Games Services leaderboard with a custom ranking screen.
• Monetized with AdMob and Unity Ads mediation, and ran a Google Ads app campaign for user acquisition.

Get it on Google Play  ·  Full project page

Line Defence is a Clash Royale-inspired tower defence prototype I built with my team during my internship at Udo Games. I was responsible for the entire skill and resource system from its underlying architecture to the moment to moment player feedback.

Skill Architecture

• Designed an abstract base class (SkillBase) that every skill inherits from, so all skills share one consistent contract.
• Used a template method pattern: the base class handles the mana cost and affordability check in one place, while each skill only implements its own effect making new skills fast and safe to add.
• Separated every elemental skill into a Projectile → Area structure: the projectile travels to the target and, on impact, spawns a reusable area effect. Damage, radius and duration are all tunable from the Inspector.

The Five Skills

• Fireball — flies to a target marker and, on impact, leaves a burning area that deals damage over time.
• Freeze — freezes the first enemy it hits and drops a frost area that slows every enemy inside it.
• Lightning — a fast projectile that triggers an instant area strike, damaging all enemies within its radius at once.
• Wind — creates a blast that applies a physics based knockback impulse, pushing enemies away from its center.
• Barricade — places a defensive barricade oriented toward the chosen direction to block the lane.

Mana Economy & Skill Rotation

• Built a mana system that regenerates over time up to a cap, with every skill gated by its cost.
• Implemented a Clash Royale style skill rotation: after a skill is cast, its slot automatically cycles to the next available skill that isn't already on the bar.
• Skill buttons re-check affordability every frame and grey themselves out when the player can't afford them, giving instant visual feedback.
• Handled targeting with a dedicated input layer: select a skill, then click the battlefield to cast clicks over UI are ignored and screen positions are converted to world space.

Line Speed Boost

• Added a speed-boost ability for the defended line: for a mana cost, it temporarily multiplies the line's movement speed for a few seconds.
• Gave its button a custom grayscale material for the disabled state instead of the default fade, and locked it out while the line is reversing, while a boost is already active, or when mana is too low.

A two person internship project at Talya Bilişim where we built an end to end performance monitoring and reporting pipeline for a Windows machine. As a small two-person team we worked closely across the whole stack rather than splitting into fixed roles.

Metric Collection

• Set up Prometheus to scrape system metrics every 15 seconds from a Windows Exporter endpoint.
• Collected CPU, memory, disk read/write and network send/receive metrics from the target machine.

Alerting

• Wrote custom PromQL alert rules for high CPU, memory and disk activity, split into warning and critical severities.
• Added recording rules that compute a rolling daily baseline of network traffic, then alert on anomalous spikes traffic exceeding 1.5× the daily average.
• Configured Alertmanager to group alerts and send email notifications over SMTP, including resolved notifications once an issue cleared.

Dashboards

• Built a Grafana dashboard showing the live system state with gauges (CPU, RAM, total network Mbps) and time-series graphs (CPU, RAM, disk read/write, network sent & received).

Reporting

• Produced server status reports documenting the machine's performance and the monitoring setup.