Legion Platforms

Kour.io is thee ultimate first-person multiplayer 3D web shooter experience that will plunge you into heart-pounding battles across so many different maps and alongside a multitude of guns and modes to play with! Kour.io is one of the easiest accessible first-person shooter games due to it being available on both your web browser, and mobile. It possesses numerous game modes ranging from free for all, team deathmatch, gun-game, and Hardpoint! You have the option to select from a variety of classes from AK-47's to Flamethrowers that fit your playstyle to help you ensure you become the #1 Kourian!

Kour.io

Gameplay Trailer

nizakashii

It is a first person shooter.
As you defeat enemies, the % in the upper right corner increases,
and when it reaches 100%, the boss will appear.
The game ends when all five sides are cleared.

CielClou

Gameplay Video

David Wu SoftDev

This game emulates the classic Doom experience (to an extent) with a Hololive theme.

Doog

Trailer

The online multiplayer voxel first person shooter in your browser!

Voxiom.io

Blayze Games

Bullet Force is a multiplayer first-person shooter featuring weapon customization, satisfying gunplay, 20-player servers, multiple gamemodes, and more. Bullet Force also features a singleplayer mode with bots.

Bullet Force

Cmune

UberStrike is a Free to Play FPS and is Facebook's largest FPS.

UberStrike

Noble Empire Corp.

World of Guns: Gun Disassembly lets you delve into the inner workings of guns from the largest gears to the smallest screws

World of Guns: Gun Disassembly

Tanaka U

Japanese Flash game where you control a sniper girl as you complete missions. The game simulates bullet physics such as velocity and wind effect.

Material Sniper

Trebuchet Entertainment LLC

A Browser based multiplayer game where players can fight it out on foot, in APC's, tanks, or helicopters in large scale maps.

First Person Shooter Browser Games