Axom Mechanics Guide: Core Systems, Building & Combat

Core Gameplay Loop: Build, Expand, Defend

Axom’s core gameplay revolves around a three-phase loop: building your fortress, expanding into the procedurally generated alien world, and defending against physics-driven swarms. Each run begins with a central core that you must protect at all costs. You start with a limited set of resources and blueprints, requiring you to make strategic decisions about what to construct first. Unlike traditional tower defense games, your base is not static; you can and must expand outward to claim new territory, gather more resources, and uncover hidden upgrades. The environment itself is a threat, as corrupted terrain spreads and must be purified to allow for safe expansion.

Building and Fortification Systems

The building system in Axom is deep and modular. You can construct hundreds of different structures, each serving a unique purpose. Walls and barriers are your first line of defense, channeling enemies into kill zones. Turrets and traps provide the offensive punch, with various damage types and effects. Resource buildings like harvesters and refineries are essential for a sustainable economy. All structures can be upgraded multiple times, increasing their health, damage, or resource output. The placement of buildings is critical, as the physics engine means that explosions can destroy nearby structures, and enemy projectiles can arc over low walls. Use the /en/guides/beginner-guide/ for a step-by-step walkthrough of your first fortress.

Resource Management and Economy

Managing resources is the key to long-term survival. The primary resources are Scrap, used for basic construction; Energy, required to power advanced buildings; and Biomass, a rare material needed for high-tier upgrades. Resources are gathered by placing harvesters on specific resource nodes found throughout the map. You can also salvage destroyed enemy units for a trickle of resources. The economy is balanced around risk versus reward: expanding too quickly leaves your core vulnerable, while staying too defensive starves you of the resources needed to survive later waves. For a deeper dive into resource optimization, see our /en/guides/resource-management/ guide.

Physics-Driven Combat and Enemy Behavior

Combat in Axom is heavily influenced by a realistic physics system. Enemy units, known as the Swarm, are driven by physics-based movement and collision. They can be knocked back by explosions, pinned by debris, or funneled by terrain. Different enemy types have unique behaviors: some charge directly at your core, while others fly over walls or burrow underground. Understanding these behaviors is crucial for effective base design. For instance, placing a row of spike traps in front of a wall will damage charging enemies, while flamethrower turrets are effective against tightly packed groups. The physics system also means that your own attacks can have unintended consequences, such as a rocket destroying your own walls if fired too close.

Progression and Roguelite Elements

Between runs, you can unlock permanent upgrades and new buildings through the game’s roguelite progression system. Each run earns you Experience Points, which contribute to your overall account level. Leveling up unlocks new blueprints, starting bonuses, and cosmetic options. You can also find Relics during a run, which provide powerful, run-specific bonuses. The /en/guides/progression-system/ guide details how to maximize your account progression. The roguelite nature means that no two runs are the same, as the map, resource placement, and available upgrades are procedurally generated each time.

Tips for Mastering Axom’s Mechanics

To truly master Axom, focus on these key principles. First, always expand your resource gathering early in the run to build a strong economy. Second, design your base with chokepoints to maximize the effectiveness of your turrets and traps. Third, experiment with different building combinations to find synergies; for example, slowing towers paired with high-damage sniper turrets are devastating. Finally, don’t neglect your core’s defenses. A single upgrade to your core’s armor can buy you precious seconds in a critical moment. For more advanced strategies, check out our /en/guides/tips-and-tricks/ page.