Hey r/itchio,



Just released v1.0 of my game PCB Defense on itch.io. It's a tower-defense roguelite that runs in the browser, built entirely in vanilla JavaScript + HTML5 Canvas — no engine, no framework, no asset packs. Everything is procedural: the PCB board, the traces, the sound design, the VFX.



\*\*What it is:\*\*

You're the BIOS cannon defending a CPU core from waves of electronic hostiles crawling along the traces of a circuit board. Place turrets on solder pads, upgrade your core, fight bosses every few levels, and stack corruption cards that make every run harder than the last.



\*\*The hook:\*\*

Weapons don't cost anything — they unlock by mastery. Reach Level 30 with the BIOS BOLT and the LASER opens up. Reach Level 30 with the LASER and the PLASMA opens up. Then the RAIL. Each weapon has its own separate skill tree save (its own SP, its own unlock path), so equipping a new weapon is a fresh climb, not just a stat swap.



\*\*Features:\*\*

\- 4 weapons with separate skill trees (32 nodes, 5 branches)

\- 25 corruption cards that tier up as bosses fall

\- Bosses every 3 levels with adaptive HP, phases, and enrage timers

\- Runs are \~10–20 minutes

\- Mouse-first controls (left-click place, right-click upgrade, ESC pause)

\- Mobile-friendly HUD, no download, no signup



\*\*Game page:\*\* [https://juba13.itch.io/pcb-defense](https://juba13.itch.io/pcb-defense)



If you give it a try, feedback is very welcome — especially on progression pacing and boss difficulty. Bugs, feel, numbers, all useful.



Thanks!

PCB Defense — TD roguelite where weapons unlock by mastery, in browser