Write the prompt around a playable rule
The prompt splits the loop into a cast choice, a bite response and a controlled reel. Each cue maps to one action. Keep the tension bar visible and explain what holding does, so the player knows to release before the line breaks. Different fish can vary resistance, but the first attempt should demonstrate the same rules with a slow pattern.
Original concept prompt: “Create a calm one-screen fishing game at a pond. Tap one of three marked casting spots; a bobber dips when a fish bites. Tap once to hook, then hold only while the tension bar stays in the green zone. Show a short tutorial catch, then vary bite timing and fish resistance on later attempts.” This is a recipe for an idea, not a claim that this exact game is already playable.
Play, observe and refine one thing at a time
Cast to each spot and wait for a bite. Check whether the bobber cue is distinct from ordinary water movement and whether a single tap hooks the fish reliably. During reeling, test short holds and releases to see if tension responds clearly. If players lose a fish without understanding why, make the bar change more gradually or show a warning before failure.
Adjust cue timing or tension response one at a time. If the bite arrives too quickly, extend the reaction window; if reeling is effortless, make the green zone narrower only after players know when to release. Let cast location alter bite frequency modestly, and show enough evidence for players to compare spots across a few attempts.
Do not make random waiting the main challenge. Give players visible signs that a bite may be near, and make the response consistent. Keep the mood calm through steady pacing and gentle feedback rather than a hidden timer that suddenly ends the cast.
Playable reference for this prompt: Tide Trail. A paper boat drifts on its own through a canal network; tap junction switches in real time to route it past rocks, lock gates, whirlpools, tides, ferries and lightning to the lighthouse, collecting shells for stars across an 18-level journey map. Use this example to compare the proposed rules with a game you can try now. For your version, use this check: How do I distinguish a bite from background motion?
Questions about fishing game prompt
How do I distinguish a bite from background motion?
Use a clear bobber change and a short taught example. Test whether players can identify the bite without already knowing the timing.
What should happen when tension gets too high?
Define a warning followed by a consistent failure or recovery rule. A readable meter should let the player connect holding too long to the outcome.