This study aims to explore a new, engaging approach to support older adults with psychosis-an umbrella term that includes conditions such as schizophrenia, late-onset schizophrenia, and psychotic symptoms resulting from other medical or psychiatric conditions like dementia, delirium, mood disorders, or delusional disorder. As the aging population grows, a rising number of older adults are living with schizophrenia and related disorders, facing not only psychiatric symptoms like hallucinations and delusions but also cognitive impairments, reduced mobility, social isolation, and physical decline. These combined challenges significantly affect daily functioning and quality of life. At present, there are no psychosis treatment guidelines specifically tailored for people aged 60 and above, though general principles from younger populations can be adapted. Evidence suggests that integrating physical and cognitive rehabilitation into standard psychiatric care may enhance treatment outcomes for this age group. One promising method is the use of exergames-interactive video games that combine physical movement with cognitive challenges. These games typically require users to perform body movements such as stepping or shifting weight in response to visual and auditory cues, thereby training functions like attention, memory, balance, coordination, and executive function. Exergames offer a playful and stimulating alternative to conventional exercises and are often better accepted by older patients because of their engaging and motivating nature. Previous studies have shown that older adults with schizophrenia not only tolerate these games well but may also experience improvements in mood, cognitive function, and physical activity levels. However, past research has been limited by small sample sizes, lack of control groups, and short intervention periods. This current study, conducted at the Psychiatric University Hospital in Basel, Switzerland, seeks to examine the feasibility and benefits of using an exergame system called Dividat Senso in a more structured and controlled setting. After being screened for eligibility, participants will be randomly assigned to one of two groups. The intervention group will receive usual psychiatric inpatient care, extended with exergame-based motor-cognitive training using the Dividat Senso platform. This device requires full-body interaction, targeting both cognitive functions (such as attention, memory, and executive skills) and physical abilities (such as balance and coordination). The control group will also receive usual care, but instead of exergames, they will participate in traditional strength and balance exercises taken from the Otago falls prevention program. Both groups will train three times a week for four weeks, with each session lasting approximately 20 minutes-totaling 12 sessions. All participants will complete assessments before the intervention begins (T1) and again after four weeks (T2), to measure changes in physical activity, mental well-being, and cognitive performance. By using a structured program and comparing two active interventions, this study aims to generate more robust and generalizable findings on how technology-based, body-and-brain training can support the mental and physical health of older adults with psychosis. If proven feasible and effective, exergame-based rehabilitation could become a valuable and enjoyable addition to psychiatric treatment programs for elderly patients.