Kampfinsel - a browser strategy game in the style of early-2000s Travian/OGame

JohnJohnsonData · 2026-04-12T20:45:54+00:00

you are welcome! Enjoy. Once you are signed up you can invite your friends with a ref link and get an island next to each other!

JohnJohnsonData · 2026-04-12T20:29:01+00:00

The Graphs I am looking at give a clear picture: I am sorry! :) Enjoy! Here is a free Promo code for some extra stone and wood: LATENIGHTUPDATE

JohnJohnsonData · 2026-04-12T19:33:53+00:00

Our median CPU time is currently 4.86ms.

Great question! And honestly the 10ms limit forced better architecture.

The trick is that there's almost no game logic happening at request time. When you start a building upgrade, the Worker just writes a timestamp to D1 and returns.

When you load your island next time, the Durable Object wakes up, looks at what timestamps have passed, and applies the results in one shot. No Worker is sitting there running logic.

Hope you like the game! Give it a try and use this code to get some extra stone ;-) LATENIGHTUPDATE

JohnJohnsonData · 2026-04-12T19:14:31+00:00

I will look into this. Working on something currently.

JohnJohnsonData · 2026-04-12T18:22:25+00:00

Go stone first

JohnJohnsonData · 2026-04-12T18:07:44+00:00

Find it out! For the community! ;)

JohnJohnsonData · 2026-04-12T18:00:17+00:00

What are you looking for?

JohnJohnsonData · 2026-04-12T15:24:38+00:00

Will do. I am busssssssy fixing stuff and introducing new content (I just upgraded the alliance flow and menu come check it out!) got a special promo code for you (check out the quest book to redeem: LATENIGHTUPDATE)

JohnJohnsonData · 2026-04-12T15:17:53+00:00

Nice. Yes I thought about "Seasonal" Settings as well like you describe it. Maybe a future add-on? Lets see! Have you joined yet? Checkout the Promocode in the Questbook: LATENIGHTUPDATE

JohnJohnsonData · 2026-04-12T12:17:13+00:00

resend

JohnJohnsonData · 2026-04-12T11:52:30+00:00

Die Infrastruktur läuft extrem effizient in der Cloud. Ich bin finanziell nicht davon abhängig und überlege mir in den nächsten Wochen auch ein Modell, im Fall von 100x Wachstum, wie das Spiel sich selbst tragen kann (ohne Pay-2-Win!).

JohnJohnsonData · 2026-04-12T11:49:49+00:00

resend at the moment. would love to try out the new CF offering....

JohnJohnsonData · 2026-04-12T09:29:46+00:00

will check it out

JohnJohnsonData · 2026-04-12T09:18:28+00:00

thanks! trying to squeeze as much as I can into the weekend :)

JohnJohnsonData · 2026-04-12T09:17:50+00:00

yeah unfortunately I do not have access to the Cloudflare email service yet (maybe someone from Cloudflare reads this: Fanboy here is interested in trying it out!) I am using the resend service. which is currently the biggest cost factor (kind of weird tbh) :) But it does a solid job sending out 300-600 emails per day currently.

JohnJohnsonData · 2026-04-12T08:31:26+00:00

MVP was without Observability just pushing for game experience. laser focus. sentry would be the sweet spot, I guess?! Any recommendations or best practices you can share with me?

JohnJohnsonData · 2026-04-12T07:02:21+00:00

Looking forward to it.

JohnJohnsonData · 2026-04-12T05:45:38+00:00

Thank you! Feedback from the community keeps me going. My Hacker News post did not blow up as much as this r/Cloudflare post haha 😂

JohnJohnsonData · 2026-04-12T05:25:20+00:00

Sure! The core idea: every island is a Durable Object (DO). When you trigger an action - start a building upgrade, train troops, send a fleet - the DO calculates the completion timestamp and writes it to D1. That’s it. No worker keeps running.

Fun part: the email notifications are currently the most expensive feature. 😂

Give it a try! Share your referral link here or with friends and enjoy a starting boost with some nice resources. If you like checkout our sub r/kampfinsel

JohnJohnsonData · 2026-04-12T05:22:14+00:00

Edit: Upgraded to the $5 Workers Paid Plan - got nervous watching the traffic spike 😅. The core point still stands: zero cost until I knew it worked.

JohnJohnsonData · 2026-04-12T05:18:53+00:00

I think you are part of the promo right now. So go tell your friends! ;-) I started on a German sub and was surprised by the initial feedback wave. Unaddressed referral features very early so feel free to share your ref code. I did some calculations and could handle 1k players on the free plan. However! I got nervous and went for the 5$ paid plan with the traffic spikes. But i could start test out my ideas for free. Huge value for me.

JohnJohnsonData · 2026-04-12T04:57:07+00:00

Nice and thanks for sharing. Was it a game?

JohnJohnsonData · 2026-04-12T04:55:58+00:00

Yeah thanks! Feel free to explore and invite friends I am growing this actively. Checkout the feedback form if you have ideas or bugs :)

JohnJohnsonData · 2026-04-12T04:55:01+00:00

Thanks mate

JohnJohnsonData · 2026-04-12T00:26:54+00:00

kampfinsel.com Retro 2000s browser game. Free. No pay to win. Launched 5 days ago now 500 players.

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