Solo creator plan
Keep the first version to one offer. A small scope makes it possible to finish the game loop, purchase choice, delivery, and recovery without maintaining a large shop.
Solo Creator guide · Card Battler · Direct Koin item
How a Solo Creator Can Add a Koin Convenience Upgrade to a Card Battler Game
Build the card battler game first, then add one optional convenience upgrade that supports the existing play loop. This guide keeps the item understandable from its first preview through delivery and reload.
Create this game flow
Plan the convenience upgrade around the game
Why it fits card battler
A card battler browser prototype centered on deck identity, readable rarity, and strategic counterplay.
What the item offers
A convenience upgrade preview with a concrete description and direct Koin price.
A practical card battler example
Offer moment
Place the convenience upgrade after this loop advances: a card battler browser prototype centered on deck identity, readable rarity, and strategic counterplay. Wait for a safe pause. Player progress must not depend on the offer.
Offer card
Offer-card rules: Avoid ambiguous rarity promises; Show the before-and-after limit. Show the item, benefit, ownership or duration, balance, and specific Koin amount. Keep confirm and cancel separate.
Successful result
Test preview, confirm, insufficient balance, success, apply the durable convenience entitlement and show the changed limit, and reload. Show that change inside normal play instead of relying only on a success message.
Free path
Test a free session around a card battler browser prototype centered on deck identity, readable rarity, and strategic counterplay. If play becomes incomplete, fix the game before changing the offer.
Design the convenience upgrade in detail
Use the collection boundary
Show the item in a deck editor, reward summary, or collection screen, never over a timed turn. Players need space to compare ownership, quantity, and deck legality before confirming.
Avoid ambiguous rarity promises
Name the exact card, cosmetic treatment, or content unlock instead of implying a random competitive advantage. If the item is visual only, keep its stats identical and say that plainly.
Validate deck state
After delivery, add the item to the correct collection and enforce copy limits. Cancellation, not enough Koin, and reload should preserve the current deck list without inserting, removing, or upgrading unrelated cards.
Verify collection ownership and deck legality
This card battler game uses a card battler browser prototype centered on deck identity, readable rarity, and strategic counterplay. Review the genre through use the collection boundary and avoid ambiguous rarity promises. For a solo creator, the convenience upgrade should support that loop without becoming mandatory. Review the item through show the before-and-after limit and treat the upgrade as durable. A solo creator should revise one prompt instruction at a time and compare both playable versions. The example offer is: A convenience upgrade preview with a concrete description and direct Koin price. This offer emphasizes less friction while preserving the playable free path before expanding the catalog. Start with a saved deck list, collection quantities, active format, reward history, and selected cosmetic style. Open the choice from the collection screen after a match, cancel, and confirm the deck remains byte-for-byte equivalent in visible terms. Try insufficient Koin without inserting a placeholder card. Complete a valid named card, visual treatment, or content unlock and apply copy limits and format rules immediately. Play a match, return to the editor, and reopen the game. Check one ownership grant, stable deck contents, unchanged earned rewards, and no random rarity implication. Visual-only items must keep statistics identical, while competitive access remains understandable for a player who declines.
Keep the build finishable
Treat the purchase flow as one small feature inside the game, not a separate storefront project. Finish one offer, one confirmation, one delivery path, and the recovery states before considering another item or catalog category.
Reuse one item definition
Write the benefit, Koin amount, duration, ownership rule, and delivery location once. Copy that definition into the offer, confirmation, inventory, and test notes so solo edits do not create contradictory promises.
Use a short personal test loop
Generate the game, complete the core activity, decline the offer, trigger insufficient Koin, buy successfully, and reopen the game. Record the first confusing moment instead of changing several screens at once.
Ask one person to play cold
Give the link to someone who has not seen the prompt. Ask them to find the price, explain the item, cancel, complete the choice, and locate what was delivered without hints from you.
Use a one-evening revision plan
Choose the single player action that is still confusing and save the current build before editing. Rewrite only the relevant prompt sentence, generate again, and replay the same success and recovery routes in both versions. Keep a short note containing what changed, which version behaved more clearly, and what remains outside your implementation ability. Prefer a finished item with honest boundaries over a broad shop containing unfinished states. When asking someone else to test, give them the link and one goal but no walkthrough; their first hesitation is more useful than another hour spent polishing copy you already understand.
Prove the improvement without manufacturing discomfort
Display the current capacity, preset count, queue size, travel option, or workflow limit beside the precise improvement and show whether ownership is permanent. Play a representative session without it and record whether storage, repetition, waiting, or navigation already feels intentionally designed. If the free experience is cramped or slow only to sell relief, repair that baseline first. Complete the choice, apply the new limit in its normal screen, fill or use the added capacity, and reopen the game. The higher limit should remain visible and should never appear buyable again for the same account state. Check that a cancelled choice preserves existing configuration, insufficient Koin changes nothing, and the upgrade helps without turning ordinary progression into a penalty.
Show the before-and-after limit
Display the current capacity or workflow and the exact improvement, such as additional inventory slots or another saved preset.
Treat the upgrade as durable
Once buying is complete, apply the new limit visibly and preserve it after reload. Do not make the player buy the same permanent improvement again.
Remove artificial friction
Test the game without the upgrade. If normal play feels deliberately slow, cramped, or repetitive only to sell relief, improve the free experience first.
Build it in five steps
1. Finish the card battler loop
Make the main activity playable before adding the convenience upgrade. Players need context to judge whether the item is useful.
Result: A working card battler foundation
2. Write one item definition
A convenience upgrade preview with a concrete description and direct Koin price. Keep the same wording in the preview, confirmation, and delivered state.
Result: A consistent player promise
3. Generate the purchase choice
Show the exact Koin amount, available Koin balance, confirm, cancel, and what ownership means. Reuse the same item definition across the preview, confirmation, and owned state. That keeps the copy and behavior consistent while you work alone.
Result: An understandable decision
4. Deliver and recover
Test preview, confirm, insufficient balance, success, apply the durable convenience entitlement and show the changed limit, and reload. Then test not enough Koin, cancellation, repeated input, interruption, and reload.
Result: A visible, stable result
5. Test as a solo creator
Run the success path first, followed by cancel, too little Koin, repeated clicks, and reload. Ask one other person to try it without an explanation.
Result: Solo creator plan
Generate it in SEELE
Prompt 1
Create a browser-playable card battler game prototype for a solo creator. Build the core loop around deck identity, readable rarity, and strategic counterplay. Add one optional convenience upgrade offer containing an inventory expansion with before-and-after capacity, Koin price, and persistent owned state. Price it directly in Koin, require an explicit confirmation, show the balance effect, and apply the durable convenience entitlement and show the changed limit. Do not add subscriptions, external payment checkout, revenue reporting, or guaranteed earnings. Include insufficient-Koin, cancel, success, and reload states.
Prompt 2
Keep the item optional. Show its precise Koin price, balance before spending, confirm, cancel, low-balance, success, visible delivery, and reload states.
Solo Creator playtest checklist
- The convenience upgrade supports the existing card battler loop.
- The item benefit and ownership rule are clear ahead of confirmation.
- The full price in Koin and current Koin balance appear together.
- A cancelled choice returns to play without loss or pressure.
- Success visibly delivers the confirmed convenience upgrade.
- Run the success path first, followed by cancel, too little Koin, repeated clicks, and reload. Ask one other person to try it without an explanation.
Before you publish
- Avoid this design problem: turning ordinary play into artificial friction that exists only to sell relief.
- This guide uses a direct Koin transaction for one optional game item. It does not create a subscription or recurring charge.
- The result is a playable browser prototype. Native billing, identity, durable entitlements, security, refunds, and store approval need separate implementation.
- SEELE does not provide payment analytics, tax tools, payout reports, or guaranteed revenue through this flow.
Frequently asked questions
What should this card battler offer contain?
A convenience upgrade preview with a concrete description and direct Koin price. Start with one item and one price.
Is this a subscription?
No. The player spends Koin directly on one named item or unlock.
What happens if the player cancels?
Return to the same game state without spending Koin or delivering the item.
What if the Koin balance is too low?
Explain the shortage, preserve progress, and do not deliver the item.
Does this include payment or revenue reports?
No. It covers the player-facing purchase experience, not financial reporting.
Is the prototype ready for a native store?
No. The browser prototype still needs native billing, persistence, security, refunds, and platform approval.
Build this card battler purchase flow
Open the complete prompt in SEELE, adjust the item and Koin price, then generate a playable version you can test.
Open this prompt in Workspace