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To make a game like PEAK with AI, design a cooperative climb where every handhold costs stamina and teammates decide when to help, rest, or risk a detour. In Chatforce, describe the mountain, controls, and rescue rules, then shape the first playable by chatting with the AI team. Climbing in a side view turns this into a cooperative platformer. Character art with distinct colors helps teammates spot each other.
Make the climb a conversation
The pleasure of a co-op climbing game comes from reading a dangerous route together. One player spots a broad shelf, another checks the group’s stamina, and someone at the back asks for a pause. Make those choices matter more than frantic button presses. Clear silhouettes help a team agree on the next move before anyone commits to it. Clear sound effects for a slipping grip help teammates react. Games like Terraria also reward reading terrain together.
| Design choice | What to decide |
|---|---|
| Dimension | Use 3D for readable cliffs, ledges, and a shared view of the route. |
| Climbing rhythm | Set how quickly grip and stamina drain, and where climbers can safely pause. |
| Team roles | Let players call routes, steady a rope, or share a limited recovery item. |
| Mountain shape | Build a sequence of distinct sections with multiple lines upward. |
| Failure | Choose whether a fall costs time, supplies, or a return to the last safe shelf. |
Build the expedition in four passes
Choose a 3D view that explains the rock
Start in 3D because the fun depends on judging vertical distance, footholds, and the space between climbers. Ask Chatforce for a compact mountain face with a camera that stays behind the active climber but pulls back near ledges. Specify a forgiving climb control: point toward a reachable surface, press to grip, and release to move. Ask for strong contrast between climbable rock, loose stone, and safe ground. Test whether a friend can tell which route you intend to take just by looking at the screen.
Tune grip, stamina, and recovery
Describe stamina as a visible shared concern, even if each climber has an individual meter. Grip drains faster during a long reach, in cold wind, or while carrying a teammate’s pack. Resting on a broad shelf should restore some energy, while a tiny foothold gives only a brief pause. Ask for clear warnings before a grip fails, then try the route with a group and adjust the drain until planning matters without making every climb feel like a countdown. Add one recovery supply with a simple use and a limited quantity.
Give the team useful rescue choices
A teammate should be able to make a fall tense without turning it into an instant end to the run. Prompt for a short rescue window in which a nearby climber can anchor a rope, reach down from stable ground, or guide the fallen player to a lower shelf. Put a cost on help, such as stamina or a rope charge, so the group must judge whether to rescue now or regroup below. Make calls legible with brief text pings or simple gestures, especially when players are separated by the cliff.
Shape a summit route with landmarks
Ask for three climbing sections that change the problem: a sheltered rock wall, an exposed ridge with gusts, and a final traverse toward a visible summit marker. Place at least two viable routes through each section, then put a safe rest area where players can compare supplies. Use weather and lighting to signal a change in conditions rather than hide every handhold. Keep the first route short enough to replay quickly. Once it works, ask the AI team for a longer variation with a new obstacle and a different skyline.
Example prompt: Make an original 3D cooperative climbing game about a team of lantern keepers crossing the fictional Brindleback Range before nightfall. Give each climber stamina, grippable rock, safe shelves, and a visible summit beacon. Create three compact sections with a direct route and a longer sheltered route. Players can call a direction, share one warming tonic, and help a dangling teammate from nearby stable ground. Use original characters, names, art, music, and story. Keep the camera close enough to read ledges and wide enough to see the group.
Test the pause before the fall
Replay the same wall with different group sizes and listen for the moment communication breaks down. If players fall because they cannot see a safe foothold, improve the camera or highlight the reachable surfaces. If they never need to stop, increase the cost of long reaches or add exposed sections where stamina recovers slowly. If rescue feels automatic, make the anchor position or rope supply more important. Change one value at a time, describe what felt wrong in chat, and replay the climb to compare the result. For other examples of playable projects, visit the game gallery. Shared danger and callouts drive R.E.P.O.-style co-op games as well. Valheim-style co-op adds base building to a similar loop.
Publish a route friends can attempt together
When the climb communicates its rules, publish the browser-playable game at a shareable URL. Friends can join without an account, and online multiplayer supports up to 8 players per room. Keep the first ascent compact so a group can learn the controls, fail safely, and try a different route in one sitting. Add a clear start point and summit goal, then share the link with a note about whether players should talk through the route or discover it as they go. You own the work, and published games have no watermark. Roblox Studio is where many people build co-op obstacle courses, so its comparison page is useful if you are choosing a tool.
Frequently asked questions
Can I make a direct copy of PEAK?
Use PEAK only as a reference for cooperative climbing and stamina pressure. Create original names, climbers, art, music, mountain routes, and story, and make your own rules for rests and rescues.
Should a climbing game like this be 2D or 3D?
3D suits a game built around judging height, ledges, and the positions of teammates on one cliff. In Chatforce, the 2D or 3D choice is made at creation and cannot be switched later.
Can friends climb together online?
Yes. Chatforce supports online multiplayer in 2D and 3D, with up to 8 players per room. Ask for clear route signals and rescue actions so the group can coordinate while climbing.
Related pages: Multiplayer game guide · How to make a game with AI · 3D game maker · Games like Celeste · Multiplayer game maker · Browser game maker