Epoch

Epoch is okturan's single-file tower-defense game, following one defensive campaign from the Stone Age through the Space Age. Each of ten ages unlocks a tower with a distinct role, beginning with a basic Rock Hurler and adding splash, armor penetration, burning, knockback, ramping fire rate, homing missiles, damage amplification, support slowing, and an infinite-range orbital beam. Ten enemy archetypes force the player to revise a layout rather than relying on one universally strong tower.

Every tower can gain three ordinary levels and then choose one of two permanent specializations. Identical adjacent towers can merge into level four and five forms without losing invested gold, while six hidden neighbor recipes fuse different tower types into units unavailable from the shop. Adjacency also shares burning, radioactive, and fire-rate effects. Boss victories offer one of three doctrines from a twelve-perk pool, and later ages unlock aimed meteor, freeze, and fire-rate powers. The standard campaign contains fifty waves; surviving it opens Endless mode and a scored performance review. Canvas graphics, music, and effects are generated at runtime, and the MIT-licensed game works offline without external dependencies.

Choose one of the three maps. You begin with eighty gold and twenty lives. Select an available tower and place it on an open cell beside the fixed enemy route. Defeated enemies pay for more towers and upgrades; each ordinary leak costs one life and a boss leak costs five. Inspect later waves and diversify the board as armored, regenerating, splitting, shielded, and rushing enemies appear.

Select a placed tower to upgrade or sell it. At level three, choose one permanent specialization. Move or direct an identical neighboring tower onto it to merge without losing gold, and experiment with unlike neighbors to discover six fusion recipes. Position towers near Braziers, Reactors, and Drone Hubs to inherit their ammunition or speed effects. After each boss, choose one doctrine for the rest of the run. Aim the meteor and trigger freeze or the fire-rate burst when cooldowns allow. Survive wave fifty to win, then continue in Endless mode if desired.