Play Onslaught Online

Onslaught came out for the Sega Genesis in 1991, published by Taito. It was part of that wave of action games that really tried to push the hardware, with big sprites and a lot happening on screen at once. You saw a lot of games like this back then, trying to deliver an arcade style experience at home.

You control a lone warrior navigating a series of single screen rooms. Your goal is to survive the onslaught of monsters in each room to proceed to the next. The core loop is simple: you enter a room, everything tries to kill you, and you fight your way out. You have a sword for close combat and a limited supply of throwing knives for distant threats. The pacing is relentless; enemies spawn continuously, and the screen locks you in until every last one is defeated. It feels like a desperate, constant scramble for survival where a single mistake can end your run.