Games like R.O.V.E.R.
Games like R.O.V.E.R. include DOOM Eternal, Serious Sam 4, Hotline Miami, DOKA 2 KISHKI EDITION, and CARRION. We matched them by the tags players give R.O.V.E.R. on Steam (Action, Indie, Gore, Violent, and Adventure): closest matches first, and among equally close ones the better-known games.

DOOM Eternal
Shared: Action · Gore · FPS

Serious Sam 4
Shared: Action · Gore · FPS

Hotline Miami
Shared: Action · Indie · Violent

DOKA 2 KISHKI EDITION
Shared: Gore · Action · Violent

CARRION
Shared: Gore · Action · Indie

Bulletstorm: Full Clip Edition
Shared: Action · Gore · Violent

Paint the Town Red
Shared: Action · Gore · Violent

Wolfenstein II: The New Colossus
Shared: Action · Gore · FPS

Bright Memory: Infinite
Shared: Action · Indie · FPS

Prodeus
Shared: Action · Gore · Indie

Aimlabs
Shared: Action · FPS · Simulation

Serious Sam Fusion 2017 (beta)
Shared: Action · Gore · Indie

People Playground
Shared: Gore · Violent · Simulation

Survival Zombies The Inverted Evolution
Shared: Action · Indie · Adventure

My Friend Pedro
Shared: Action · Indie · Gore

Chivalry: Medieval Warfare
Shared: Action · Gore · Violent

GoreBox
Shared: Gore · Violent · FPS

Necromunda: Hired Gun
Shared: Action · Adventure · Gore

Hotline Miami 2: Wrong Number
Shared: Gore · Action · Violent

Maximum Action
Shared: Action · Gore · Violent

KovaaK's
Shared: Action · Indie · Simulation

SURV1V3
Shared: Action · Indie · Adventure

RoboCop: Rogue City
Shared: Action · FPS · Gore

Happy Room
Shared: Gore · Action · Violent