Participants will receive:

• brief (< 10 minutes) psychoeducation about the importance of engaging in social activities to support cognitive stimulation and brain health
• technology session to show them how to access games via OneClick
• participants will receive weekly calls from study staff to provide support and briefly query about social activities that week.
• A subset of questionnaires will be re-administered after 6 weeks of the intervention to capture any change occurring at intervention mid-point.
• Following completion of the 12-week intervention, participants will repeat a subset of baseline questionnaires to evaluate for change over time.

Participants will receive:

• brief (< 10 minutes) psychoeducation about the importance of engaging in social activities to support cognitive stimulation and brain health
• Participants will be notified that study team will receive weekly phone calls to ask about social activities they completed in the week prior.
• Following completion of the 12-week waitlist period, participants will repeat the baseline questionnaires to evaluate for change over time.
• After completing the waitlist condition, they will be offered the opportunity to complete the gameplay intervention.

-The online gameplay intervention includes playing online versions of common games (such as Connect 4 and Uno) with a partner, 3 times per week for at least 15 minutes, for 12 weeks.

All games will be delivered via a novel online platform (OneClick; developed by PotLuck, LLC) created specifically to support and enhance social engagement with family members and close friends.

• Participants will receive weekly calls from study staff to provide support and briefly query about social activities that week.
• They will not receive reminders or be contacted by the study outside of the weekly phone calls, apart from mid intervention questionnaires.

The scale consists of 5 core items, each with a 5-point frequency response (Almost always to Not at all).

Total possible score range is 5-25. Higher scores indicate greater feelings of social isolation (worse study outcome).

This is a self -report scale with 20 items. Participants rate each item on a 4-point Likert scale:

(1 = Never, 2 = Rarely, 3 = Sometimes, 4 = Often). Total possible score ranges from 20 to 80, with higher scores indicating greater perceived loneliness (worse study outcome).

Neuro-QOL ("Quality of Life in Neurological Disorders") consists of a scale designed to measure health-related quality of life across a variety of neurological conditions. The abbreviated form comprises short forms (8-10 items each) covering 13 key domains: physical, mental, and social health. Response format for each item ranges from "Never" to "Always" or severity levels like "None" to "Cannot do". Scores are summarized and represented with T-scores (mean = 50, SD = 10), derived from their respective calibrated item questionnaire. Higher scores correlate with worse outcome.

This scale measures an individual's sense of meaning, purpose, and life satisfaction. Includes 8-9 items in the short form, with statements like "My life has meaning" or "I have a sense of purpose," rated on a 5-point (from 1=never to 5=always). Scores are expressed as T-scores (mean = 50, SD = 10). Higher scores represent better outcome (more positive well-being).

Measures confidence in using new or everyday technologies, reflecting both comfort and perceived ability. Includes 10 items, each beginning with the stem "I could use the new technology…".

Participant will rate confidence on a 10-point scale (e.g., from "Not at all confident" to "Completely confident"). Total possible score range is 10-100, with better score correlating with greater confidence/comfort in using technology.