15 Fun Things to Do With Your Siblings as Adults

Spending time with your siblings can feel very different once you're all adults. Childhood games and family routines are replaced by work, relationships, responsibilities, and sometimes living in different cities or countries. Even when you get along well, finding time to do something together can become surprisingly difficult.

But growing up doesn't mean you have to lose the fun of being siblings. In fact, adulthood brings new opportunities to build a friendship beyond the family relationship you grew up with. You can explore shared interests, discover new hobbies, and create memories that have nothing to do with childhood arguments or whose turn it was to choose the television programme.

Whether you're planning a sibling reunion, looking for activities to do with your brother or sister, or simply want to spend more quality time together, here are 15 fun things adult siblings can do together.

1. Solve a Murder Mystery Together

If you and your siblings enjoy crime dramas, detective novels, or solving puzzles, a murder mystery game can be an excellent way to spend an afternoon together. Instead of watching fictional investigators uncover the truth, you become the detectives and work through the evidence yourselves.

A case file murder mystery gives you a collection of documents to investigate, including police reports, witness interviews, photographs, and other clues. You'll need to compare suspects' statements, establish timelines, and identify details that might reveal what really happened.

With Ink & Clues, you can download murder mystery games and print the case materials at home. Spread the evidence across the table, prepare some snacks, and see whether you can solve the case together. Some investigations also include interactive websites and digital clues, making the experience feel even more like a real investigation.

Playing with siblings can be particularly entertaining because you may approach the evidence in completely different ways. One person might focus on motives, another on timelines, and someone else on small contradictions in witness statements. You'll have plenty to discuss, and the shared challenge gives everyone a reason to get involved.

2. Revisit a Favourite Childhood Activity

One of the most enjoyable things about spending time with siblings is that you share a history nobody else knows quite as well. Why not revisit an activity you used to love when you were younger?

Perhaps you spent hours playing a particular board game, building elaborate LEGO creations, racing bicycles, or making up your own competitions in the garden. Trying one of those activities again as adults can bring back memories you haven't thought about in years.

You could even organise an entire nostalgia evening. Bring out old games, prepare snacks you remember from childhood, and listen to music you used to enjoy together.

The activity itself doesn't need to be especially exciting. Half the fun comes from remembering how seriously you used to take it, the arguments you had, and the ridiculous rules you invented along the way.

3. Take a Cooking Class Together

Cooking is a practical skill, but it can also be a fun shared experience. Taking a cooking class with your siblings gives you something new to learn while creating an opportunity to spend time together outside your usual family gatherings.

Look for a class that teaches a cuisine or technique you're all curious about. You might learn to make fresh pasta, prepare sushi, bake artisan bread, or cook dishes from a country you'd like to visit.

If attending a class isn't practical, organise your own cooking challenge at home. Choose a recipe none of you has attempted before, buy the ingredients, and work together to prepare the meal.

When everything is ready, sit down and enjoy what you've made. Even if the finished dish doesn't turn out exactly as planned, you'll have shared an experience and probably collected a few stories to laugh about later.

4. Organise a Sibling Game Night

Board games are a natural choice when you want an activity that works for siblings with different personalities and interests. They provide a shared focus, encourage conversation, and can revive a little of the friendly competition you remember from growing up together.

Choose games based on the size of your group. Strategy games, card games, cooperative board games, and party games can all work well, depending on whether you prefer teamwork or competition.

If your family has a history of particularly intense board game sessions, you could revisit an old favourite and see whether the same sibling rivalries appear. Alternatively, try a cooperative game where everyone has to work towards the same goal.

Make the evening feel special with your favourite snacks, a relaxed atmosphere, and enough time to play more than one round. You could even turn it into a recurring tradition whenever everyone is in town.

5. Visit the Place Where You Grew Up

Returning to a familiar place can be a surprisingly meaningful activity for adult siblings. Whether it's your childhood neighbourhood, a favourite park, or the town where you spent your school holidays, visiting together can bring back memories that might otherwise remain forgotten.

Take a walk through the area and see what's changed. Visit the playground you used to go to, find the route you walked to school, or stop by a café or shop you remember from years ago.

You'll probably discover that you remember completely different things about the same places. One sibling might recall a particular family outing, while another remembers a funny incident nobody has mentioned in decades.

If you no longer live near your childhood home, consider planning the visit during a family holiday or reunion. It can become a memorable experience in its own right rather than simply another stop on your schedule.

6. Plan a Weekend Trip Together

A short trip can be an excellent way to reconnect when you don't get to see each other regularly. Spending a couple of days together gives you more time to talk, explore, and enjoy shared experiences without the distractions of everyday responsibilities.

You don't need to organise an expensive holiday. A weekend in a nearby city, a countryside cabin, or a coastal town can be just as enjoyable as travelling somewhere far away.

Choose a destination that offers activities everyone is interested in. You might spend the day exploring local restaurants, visiting museums, hiking, or simply relaxing somewhere with a good view.

Try to leave some flexibility in the itinerary. A sibling trip doesn't need to be packed with sightseeing to be successful. Sometimes the most enjoyable moments happen during an unplanned coffee break or a long conversation in the evening.

7. Have a Family Recipe Challenge

Food is often closely connected to family memories. Perhaps there's a dish your parents or grandparents used to make, a particular birthday cake, or a meal that always appeared at family celebrations.

Choose one of those recipes and try recreating it together. If you have the original recipe, follow it as closely as possible. If not, work from memory and see whether you can reproduce the flavours you remember.

You could turn the activity into a friendly competition by preparing separate versions and comparing the results. Alternatively, work as a team and see whether you can finally perfect the dish.

It's also an opportunity to preserve family traditions. Write down the finished recipe, take photographs, and share it with other family members so it doesn't disappear over time.

8. Go Hiking or Explore Somewhere New

Outdoor activities can be a great option for siblings who want to spend time together without needing a complicated plan. A hike or long walk provides a shared experience and plenty of opportunities for conversation.

Choose a trail that suits everyone's fitness level and interests. It could be a woodland walk, a coastal route, a mountain trail, or a nature reserve you've never visited before.

Pack lunch, bring something warm to drink, and take your time exploring. You can stop for photographs, enjoy the scenery, and talk about everything from childhood memories to what's happening in your lives now.

If you want to make the outing more adventurous, plan a route that ends at a scenic viewpoint, a small village, or a café where you can relax afterwards.

9. Start a Shared Hobby

One of the easiest ways to maintain a close relationship with your siblings as adults is to have something you enjoy doing together regularly.

Think about interests you share or activities you've both been curious about. You might try photography, pottery, gardening, running, learning a language, or playing a musical instrument.

Starting something new together can make the experience less intimidating. You'll have someone to practise with, compare progress, and encourage you when the activity becomes challenging.

It also gives you a natural reason to stay in touch. Instead of relying entirely on occasional family celebrations, you can arrange regular sessions or share updates about what you've been learning.

10. Create a Family Trivia Quiz

A trivia quiz based on your shared family history can be one of the funniest activities for adult siblings, particularly when everyone remembers childhood events a little differently.

Ask each person to prepare questions about family holidays, childhood pets, old homes, school memories, and memorable family celebrations. You might ask who broke a particular household item, which sibling had an unusual childhood obsession, or what happened during a memorable holiday.

Write the questions on paper and take turns being quizmaster. If you have enough people, divide into teams and see who remembers the most.

The best part is often the discussion that follows each answer. A simple question can lead to a story nobody has told in years, or reveal that two siblings have completely different memories of the same event.

11. Attend a Concert or Live Event Together

If you and your siblings share an interest in music, comedy, theatre, or sport, attending a live event can be a memorable way to spend time together.

Look for an artist you both enjoy, a comedy show you've been wanting to see, or a sporting event that gives you an excuse to meet up. If your tastes are different, take turns choosing activities and introduce each other to something new.

Make the event part of a larger outing by meeting for dinner beforehand or going for a drink afterwards. That gives you time to catch up as well as enjoy the performance.

Experiences like these can become traditions. You might decide to attend a concert together once a year or plan a special outing whenever a favourite artist comes to town.

12. Organise a Mystery and Puzzle Afternoon

If your sibling group enjoys challenges, dedicate an afternoon to different kinds of puzzles and problem-solving activities.

Start with a jigsaw puzzle, move on to a collection of logic problems, and finish with a larger mystery that requires everyone to combine their ideas. You could also visit an escape room if you'd prefer an activity outside the house.

For an at-home experience, a printable murder mystery gives you a more involved challenge than a traditional puzzle. Instead of finding a single answer, you'll need to evaluate evidence, test theories, and determine which explanation best fits the facts.

The Ink & Clues Complete Game Bundle contains multiple fictional investigations, making it an option if your family enjoys returning to this type of activity. Each case gives you a new story to explore and a fresh opportunity to see how differently you approach the evidence.

13. Make a Photo Album of Your Childhood

Old photographs have a way of bringing back memories that everyday conversations rarely uncover. Sorting through them with your siblings can turn a simple afternoon into an unexpectedly entertaining experience.

Ask family members whether they have printed photographs, old albums, or digital pictures that you could gather together. Look through them, identify people and places, and share what you remember about the moments they capture.

You could create a physical scrapbook, organise the photographs into a digital album, or make a small photo book as a gift for your parents or grandparents.

Try adding short captions or stories alongside the pictures. Years from now, those details may be just as valuable as the photographs themselves.

14. Volunteer for a Cause You Both Care About

Spending time together doesn't always have to revolve around entertainment. Volunteering can give you and your siblings an opportunity to work towards something meaningful while sharing an experience outside your normal routines.

Look for local organisations that welcome volunteers. Depending on your interests and what's available nearby, you might help at a community garden, participate in a litter-picking event, support an animal welfare organisation, or assist with a local charity project.

Choose something that matters to both of you and check what the organisation actually needs before making plans. A one-off event can be a good starting point if you're not sure whether you can commit regularly.

Working together in a different environment can reveal sides of each other that don't always appear during family dinners or casual visits.

15. Create an Annual Sibling Tradition

As adults, staying close to your siblings often requires a little more planning than it did when you lived under the same roof. Creating a recurring tradition can make it easier to prioritise time together.

It doesn't need to be an elaborate event. You might arrange an annual sibling dinner, a weekend away, a board game tournament, or a day when you revisit a favourite childhood activity.

Choose something everyone can realistically participate in and try to agree on the date well in advance. If you live far apart, you could alternate between locations or organise an online gathering in years when meeting in person isn't possible.

Over time, the tradition itself may become something you all look forward to. You'll have new stories to share, familiar jokes to revisit, and an opportunity to keep building your relationship as your lives change.

How to Stay Close to Your Siblings as Adults

Adult sibling relationships can be rewarding, but they don't always maintain themselves automatically. Different schedules, distances, and responsibilities can make it difficult to find time together, even when everyone wants to stay in touch.

One helpful approach is to make plans around a shared activity rather than relying entirely on the vague intention to meet up more often. A scheduled game night, a monthly walk, or a yearly weekend trip gives you something specific to look forward to.

It's also worth remembering that siblings don't necessarily enjoy the same activities simply because they grew up together. One person might love outdoor adventures, while another prefers quiet evenings at home. Try taking turns choosing what to do so everyone gets an opportunity to share their interests.

And don't feel that every gathering needs to be a major occasion. Sometimes cooking dinner, playing cards, or spending an afternoon talking is enough. What matters is creating opportunities to enjoy each other's company beyond the usual family obligations.

Make New Memories With the People Who Share Your Old Ones

Growing up together gives siblings a unique shared history, but adulthood offers the chance to create an entirely new collection of memories. Whether you revisit childhood favourites, explore a new city, learn a skill, or start a regular game night, the best activities are the ones that give you a reason to spend time together.

If your sibling group enjoys crime stories and solving problems, a murder mystery can be a particularly entertaining shared challenge. With the Ink & Clues Complete Game Bundle, you can download a collection of fictional investigations and work through the evidence together at home.

Gather your siblings, clear some space on the table, and see whether years of knowing each other make you an unstoppable detective team—or whether you'll spend the entire evening arguing over whose theory makes the most sense.