Protocol: Biomass

A top-down survival shooter. Clear the wave, harvest the biomass, and keep the dash for when it counts.

Protocol: Biomass

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Packfall

actionSyphonGames

About this game

Protocol: Biomass is a wave survival shooter played from above, with a dash on a cooldown that is the whole defensive game. You are subject BM-01, dropped into a field operation with a health bar, a weapon and a quota of biomass to collect before the next wave arrives. Enemies come in waves that get denser rather than merely faster, so the difficulty curve is about positioning. Standing still is the mistake - the room fills, your angles close, and the dash comes back a second too late. The dash has invulnerability frames, which makes it a tool for cutting through a crowd rather than only for running from one. The biomass counter is what keeps you moving forward. Kills drop material you have to physically go and collect, so clearing a wave from a safe corner does not progress you; you have to walk back out into the space you just cleared and pick it up before the next wave starts. Kills, waves survived and time elapsed are all tracked, so a run is measurable against the last one. It is a short game by design - a few minutes a go, with the interest in how long you last rather than how far you get.

Screenshots

The Protocol: Biomass title, with a short briefing on the containment facility and the Initialize Protocol button.
Title screen
Wave 1 in the dark: the flashlight cone picks out a creature closing in, with vitals, biomass and the kill count on screen.
Wave 1
Subject Terminated: the end-of-run summary of the wave reached, entities killed, time survived and mutations, with Reinitialize Protocol.
Subject terminated

How to play

WASD to move. Move the mouse to aim, click to fire. SPACE to dash - it has brief invulnerability and a cooldown, so save it. ESC to pause. Collect the biomass dropped by kills to advance the wave. On a touchscreen, use the on-screen stick to move and the fire button to shoot.