Empyrius Siege
Pitch
What's this game about ?
Empyrius Siege is a 2D action-roguelite where you play as a mercenary mecha fighting for faction lords in a galactic war.
Crush your enemies, see their remains before you and upgrade yourself from their reclaimed parts. Become an unstoppable machine, and shape the fate of the universe.
Development history
Chronological updates from latest to earliest
Ally update & new beam turret
December 2025Now we have a new ally base that spawns friends to help you fight ! Also added a new beam turret with an upgraded version that can be unlocked through the talent trees. Also did a POC to implement platforms on the map, but result wasn't satisfying. Instead, added a lot of sprites to work on later !
Missions selection, rewards, and purchases !
November 2025After handling the Unity version upgrade for the security issue CVE-2025-59489, I switched to NavMesh for most of the AI movements. Then, I added mission selection with factions, rewards, and added more talents for the Core talent tree. We now have meta-progression with stat boosts and unlockable turrets after playing few missions!
UI / UX time
October 2025Time to work on the design of the User Interface, and how will be the User Experience. I also needed to prepare the core of the Economic system, and since I want to get mission rewards soon, prepare factions systems too. We now have a Galaxy map where we'll select missions.
Finalizing stage gameplay loops
September 2025Now enemies spawn a wreckage on death, and we can reclaim those to gain XP and upgrade ourselves ! Turrets can now be upgraded with tiers, with multiple paths for some of them. Added 5 pew pew laser turrets, and also updated the xp progression to be an editable function instead of a fixed value, more stats to upgrade, trees and rocks to harvest and balance tweaks. Now with talents ! All free for now.
Gameplay planning & communication
August 2025No code this time, holidays break. After vacations, I had to iterate on the target gameplay now that we have a nice base to work on. What are the next priorities and how could I communicate on this game ? Well, let's create a website. Hi there o/
Refining core gameplay and adding variety
July 2025Big update on graphisms and sounds. Added bosses and steps during the stage, changed spawning to waves and added a timer. Now we have the main game loop implemented. We can also select weapons when leveling up, and have bonus stats when no more weapon room is available. Added possibility for the player to use multiple Mechas for later, and switched to factions for allies and enemies. Also worked on AI movements and attack behaviors, performance improvements and a main menu.
Creating project foundations
June 2025Classes structure for the game and core mecanics for combat : turrets, targeting, enemies with a spawner and allies. The game has evolved from basic movement to a combat system with few weapon types and a game loop with leveling up that gives flat stats to the player. Also with UI elements like HealthBar, explosions, and musics.
Initial Prototype
May 2025The very beginning of Empyrius Siege. After a year of cooking ideas, planning stories, and testing prototypes, the "3C's", story and main gameplay loops are ready. We can start coding in the actual game ! To start, added basic movement systems, initial character setup for the player, the camera, and a first enemy to have the smallest game loop.
Demo
Try the latest build of Empyrius Siege (v.0.19)
Supported on Android device only for now. Don't mind the lab button on main menu not implemented yet. :)
Roadmap
Current focus : In-game mechanics and factions content
Now that we have a first implementation of all gameplay loops, time continue adding core features within the level, while adding 2D assets and sounds.
Upcoming steps
- •
Mission rewards & selection[DONE] - •
Ally base & spawns[DONE] - •Additional turrets with new mechanics
- •Adding level steps with harder spawners
- •Updating wave system
- •Creating CORE level
Future leaps
- •Narration & galactic progression
- •Base / Lab system for AFK resources gain
- •3rd faction (Sprites, sounds, missions, turrets with new mechanics & talent tree)
- •Content diversity & Balance tweaks
- •Polish (This part will take a while...)
- •Release !