With the "updated" 2023 release of Red Dead Redemption on the Nintendo Switch and PS4, the conversation has shifted. If you see videos of RDR on a handheld, it is likely: using Remote Play to stream from a PS4.
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This is the closest you will get to the RDR experience. It features horse riding, gunfights, and an open world. With the "updated" 2023 release of Red Dead