Refractor

The sci-fi strategy game you are referring to is actually titled Refactor, though it is frequently searched for or misidentified as Refractor. Developed by GAGA and published by LightOn Game, it is a highly praised, system-driven roguelike tower defense strategy game available on Steam for PC.

Unlike conventional tower defense titles, Refactor elevates the genre into a sci-fi tactical puzzle by shifting absolute control of the battlefield map and defensive mechanics over to the player. The Core Concept & Gameplay Loop

In Refactor, Earth faces a constant threat from alien invaders, but the primary allure is its deep, modular mechanics. The game relies on heavy tactical improvisation rather than static lane defense:

Grid and Route Construction: Instead of placing turrets along pre-defined pathways, you actively construct the route enemies take. You purchase random modules consisting of three road/path tiles attached to an element turret.

The Economy of Time: Turret costs scale higher with each consecutive purchase but drop by 10% at the start of every turn, forcing a calculated balance between patience and instant defense expansion.

The “Refactoring” Turret Combo: The headline feature allows you to merge three element turrets to formulate a drastically modified Refactor Turret. Depending on the elemental traits combined, the newly forged tower unlocks entirely distinct passive traits, behaviors, and skill slots. Why Strategy Fans “Need to Play” It

A “3D Chess” Experience: Forcing enemies to loop across long distances by manipulating tile geometry grants an immense sense of spatial control.

High Replayability Modes: The standard mode tasks you with surviving 30 scaling alien waves while mastering mechanics. Once completed, the Endless Mode acts as a true test of long-term planning and optimization.

Accessible Meta-Progression: The game features an in-game wiki layout detailing technology and turret traits directly inside the UI, bridging hard-core strategy calculations with accessible indie mechanics. Are you considering picking up Refactor, or AI responses may include mistakes. Learn more Refactor on Steam