DEV Community: Essam Ullah

Using AI Coding Agents as Game Modding Assistants

Essam Ullah — Fri, 09 Oct 2026 12:54:06 +0000

AI coding agents have quietly become one of the most interesting modding tools available. Not because they write mods for you end-to-end, but because they close the loop between documentation, reverse engineering, and iteration in a way that manual modding never could.\n\n## What the workflow looks like\n\nA typical session: you point your agent at a game's data directory, ask it to identify the format of a config or asset file, and iterate on an edit while the game is running. The agent reads the wiki, inspects binary structure, writes a patch, and you test instantly. What used to take a forum thread and three evenings takes about twenty minutes.\n\n## Tools that make this practical\n\nRaw agents need scaffolding: safe file handling, backup logic, and per-game knowledge. Universal Modder is an MIT-licensed toolkit that provides exactly that for Claude Code, Codex, Cursor and Gemini CLI - install guide, cost expectations, and field notes for 42 PC games covering what works and what breaks.\n\n## Practical lessons from 42 games\n\n- Texture and text mods are the low-hanging fruit. Agents handle format identification and batch edits well here.\n- Balance patches need guardrails. Letting an agent loose on economy values without backups produces memorable disasters - always version control your mod directory.\n- Scripting hooks vary wildly between engines. Games with existing mod APIs (Skyrim, Stardew) are trivial; closed engines need memory-level work that agents can assist with but not fully automate.\n- Cost is real but bounded. Agent-assisted modding consumes tokens like any coding task; the Universal Modder docs break down per-game costs so you know what to expect before starting.\n\nIf you already use an AI agent for daily coding, modding is a fun weekend project that teaches you more about both the game and the agent's limits. The Universal Modder field notes are a good starting point - they catalog which of the 42 games have active modding scenes and which formats are documented.

Minecraft Armor Trims: A Complete Guide to Smithing Templates

Essam Ullah — Fri, 09 Oct 2026 04:03:48 +0000

Armor trims turned equipment from pure stats into a fashion statement. Introduced in the Trails & Tales update, smithing templates let you apply decorative overlays to any piece of armor - and since there are sixteen trim patterns and ten colors of trimming material, there are thousands of combinations. Here is how the system actually works.

Getting templates

Trim patterns come from smithing templates found in structures: Trail Ruins, Ancient Cities, Pillager Outposts, End Cities, and more each hold specific patterns. Some are common, a few (like Silence and Wayfinder) are genuinely rare. You also need one extra template copy to duplicate patterns using seven diamonds and a matching block - duplication is essential before you risk a pattern on armor.

Applying a trim

The smithing table takes three inputs: the armor piece, the template, and a trimming material. The material decides the color - iron, copper, gold, redstone, lapis, emerald, diamond, netherite, quartz, or amethyst - and each material reacts differently depending on the base armor material, so the same trim looks different on netherite versus leather.

Picking combinations

With this many variables, most players preview combinations before spending rare templates. A browser tool like Armor Trim Generator lets you try all sixteen patterns across every armor and material combination instantly, so you can plan the exact look before farming Ancient City after Ancient City for that one template.

A few popular picks: gold trims on netherite reads as regal, amethyst on diamond has a distinct enchanted look, and redstone on iron is the classic red-guard set. Whatever you choose, duplicate the template first - nothing hurts like losing Silence to a failed experiment. Every trim is cosmetic only, so there is no wrong answer, just expensive ones.

How to Extract a Single Frame from Any Video

Essam Ullah — Fri, 09 Oct 2026 04:01:48 +0000

Whether you are making a thumbnail, documenting a bug, or pulling a still for a design reference, extracting a single frame from a video is a task that comes up constantly. Here are the three practical ways to do it, from no-install to full control.

1. Browser tools (fastest)

For a one-off frame grab, a web tool is hard to beat. Video to Frames lets you upload or paste a video URL, scrub to the moment you want, and export that frame as a PNG or JPG right in the browser. No install, no watermark, and it also extracts every frame in a range if you need a sequence for animation work.

2. FFmpeg (most control)

If you work with video regularly, FFmpeg is worth learning. To grab one frame at a specific timestamp:

ffmpeg -ss 00:01:23 -i input.mp4 -frames:v 1 frame.png

The -ss before -i seeks quickly, and -frames:v 1 limits output to a single frame. To dump every frame in a range, swap the output for a pattern like frames_%04d.png.

3. VLC (zero extra install on most machines)

VLC is already on most computers: pause on the frame you want, then Video > Take Snapshot (or Shift+S). The image lands in your Pictures folder at the video's native resolution.

Which one to pick

One frame, right now, any computer: browser tool or VLC
Repeating workflow or batch extraction: FFmpeg
Frame-accurate reference stills for editing: FFmpeg with exact timestamps

For most people the browser route covers 90% of cases - toframes.video runs entirely client-side, so even large files work as long as your machine can play them.

CHD to ISO: Converting Dolphin Disc Images the Right Way

Essam Ullah — Fri, 09 Oct 2026 04:00:08 +0000

Dolphin emulator users eventually run into the same wall: the game library is split between RVZ, CHD, ISO, and a handful of other disc formats, and not every tool or device plays nicely with all of them. If you have a CHD file and need a plain ISO - for a burner, an older loader, or another emulator - the conversion is straightforward once you know the steps.

Why CHD exists at all

CHD (Compressed Hunk of Data) is a compressed archive format originally from the MAME project. It stores disc images with lossless compression, typically cutting a GameCube or Wii dump down to half its original size while keeping every byte recoverable. RVZ is Dolphin's own take on the same idea with better random-access performance. Both are great for storage - but plain ISO remains the lowest common denominator.

Converting with Dolphin itself

Dolphin has built-in conversion: right-click a game in the list, pick Properties, then the option to convert between formats. Choose ISO as the target, wait for the progress bar, done. This is the safest path because it verifies hashes along the way.

Converting in the browser, no install

If you are on a machine where you cannot install Dolphin, or you just need a one-off conversion, RVZ to ISO handles CHD, RVZ, and BIN disc images directly in the browser. Files up to 200MB are free, uploads are resumable, and processing happens privately without the file leaving your control beyond the conversion session.

Things to watch

Verify after converting. A corrupted conversion is rare but not impossible; Dolphin can hash-check the result against Redump databases.
Scrubbed images lose data. If your source was scrubbed (garbage data removed), converting back to ISO will not restore what was removed - this matters for Redump verification.
Double-layer games. Some Wii titles are dual-layer; make sure the tool you use handles the full disc size.

With chd to iso searches climbing steadily this year, more people are clearly hitting this exact need. Whether you use Dolphin's built-in converter or a browser tool like RVZ to ISO, the whole process takes minutes once you know which format your loader actually wants.

Poople Answer Today: Solve the Daily Word Ladder Faster

Essam Ullah — Fri, 02 Oct 2026 15:10:47 +0000

If you play Poople, the daily word ladder game, you know the rhythm: a start word, a target word, and a fixed number of steps between them. Every move changes exactly one letter, and every intermediate word must be real. Some days the ladder flows in two minutes; other days you sit at step three with four letters staring back at you.

The strategy that actually works

Work from both ends. Write down every word one letter away from the start, then every word one letter away from the target. The answer usually lives in the bridge between those two lists. If a step feels forced, back up early - a wrong branch at step two costs more time than restarting.

Second, favor common words. The puzzle generator prefers vocabulary you would use in daily conversation. When your bridge candidate is an obscure word, it is almost always the wrong choice.

When you are genuinely stuck

That is what Poople Hint is for. It publishes the Poople answer today with the complete transformation path, plus progressive hints that reveal one word at a time - so you can get unstuck without spoiling the whole ladder. There is also a full archive of past puzzles and a free solver that computes the shortest ladder between any two words.

Checking a hint is not cheating; it is how you learn the word pairs the generator favors. After a week of peeking at the daily answer, most players find they need it less.

Poople Hint updates every day, needs no account, and works in any browser. Bookmark it next to your other daily puzzles.

Bringing Hotel Lobbies to Life with AI Video

Essam Ullah — Fri, 02 Oct 2026 15:04:25 +0000

A hotel lobby has about ten seconds to make an impression. Guests arrive tired, they look around, and they decide immediately whether the place feels considered or generic. Increasingly, that first impression is being designed not with furniture or artwork but with video.

The problem, until recently, was production cost. Commissioning a custom motion piece for a lobby screen meant agencies, shoots, licenses, and weeks of back-and-forth. For an independent hotel or a small boutique property, that was never realistic.

What AI video changes

Text-to-video tools have collapsed that pipeline. You describe the atmosphere you want - calm morning light across a marble floor, a slow pan over contemporary seating, soft ambient motion behind the reception desk - and the video is generated in minutes. Hotel Lobby AI Video is built exactly for this: type a prompt describing your lobby and your desired mood, generate the video in your browser, and download a loop-ready file for your lobby screens. No editors, no render farms, no subscription stack.

Practical uses we see working

Ambient loops on lobby screens - slow, abstract motion that fills the space without demanding attention
Seasonal refreshes - a winter scene in December, blossom in spring, regenerated in minutes for each season
Pre-arrival marketing - the same generated visuals reused on the hotel website and social channels for a consistent look
Local flavor - prompts that reference the city or landscape, giving the space a sense of place instead of stock-footage neutrality

Tips for better results

Keep prompts specific about camera movement and lighting: "slow dolly shot, warm evening light, reflective marble floor" beats "nice hotel lobby". Generate at the aspect ratio your screens actually use. And always review a full loop before deploying - the best ambient videos are ones guests can watch for minutes without noticing a cut.

If you run a hotel and want to try it, Hotel Lobby AI Video works directly in the browser and the first generations are free - enough to test whether a generated loop fits your space before committing anything.

Doctordle: A Daily Diagnosis Game for Medical Brains

Essam Ullah — Wed, 16 Sep 2026 23:48:54 +0000

If you are a doctor, nurse, or medical student who also plays Wordle every morning — Doctordle is about to become your new ritual.

How it works

Every day there is one new case. You get a single clinical clue, and up to six guesses to name the diagnosis. Fewer guesses, better score — just like Wordle, but with your differential diagnosis skills on the line.

Why it works for medical brains

One case a day keeps it a habit, not a time sink
The clue set rotates across specialties — cardiology, infectious disease, endocrinology and more
Perfect for ward rounds small talk: "did you get today's Doctordle?"
Free to play, no signup, works in any browser

Who is it for

Medical students prepping for shelf exams, residents sharpening differentials, attendings who claim they never forget a diagnosis — and anyone who loves a daily puzzle with a stethoscope on it.

Play today's case free at doctordle.online. Diagnosis is due by midnight.

RNGdle: One Random Number a Day, Shared by Everyone on Earth

Essam Ullah — Wed, 16 Sep 2026 23:48:12 +0000

Every day at UTC midnight, the same random number is rolled for every single person on Earth. That is the simple, strange premise of RNGdle — and it is quietly addictive.

How it works

Once a day, RNGdle generates one random number. Everyone playing that day gets the same number and the same challenge: figure out how rare your roll is.

What makes it fun

Roll your daily number and see where it lands in the distribution
Collect badges for rare rolls and streaks
Compare with friends — did anyone hit a 1-in-a-million roll today?
A brand-new challenge every single day at UTC midnight

Why I built it

I wanted a daily puzzle that takes less than a minute but still gives you something to talk about at lunch. Most daily games are word-based; I thought numbers deserved their own moment.

The whole thing runs in the browser — no download, no account needed.

Try today's roll free at rngdle.io — and see if today is your lucky day!

Minecraft Armor Trim Generator: Preview Every Trim on Your Own Skin

Essam Ullah — Tue, 15 Sep 2026 13:29:23 +0000

Armor trims are one of the best ways to customize your gear in Minecraft — but with 18 smithing templates, 10 trim materials, and 4 armor pieces to mix, finding the right combination is overwhelming.

That's exactly why we built Armor Trim Generator — a free online tool that lets you preview every armor trim combination instantly, on your own Minecraft skin.

What it does

Browse all 18 smithing templates (from Sentry to Silence)
Preview each of the 10 trim materials — iron, copper, gold, emerald, diamond, and more
See the result on your actual skin before spending resources in-game
Screenshot your favorite designs to share with friends

Why it's useful

The tool runs entirely in the browser — no downloads, no installation, and nothing to sign up for. Whether you're hunting for the perfect netherite trim or just want to see what gold on leather looks like, you can test every combination in seconds.

Try it free at armortrimgenerator.com and level up your Minecraft style today!

RVZ to ISO: Convert Wii/GameCube Disc Images Online Without Dolphin

Essam Ullah — Fri, 11 Sep 2026 10:28:39 +0000

I just released a free browser-based tool for converting RVZ, CHD, and BIN disc images to ISO — no installation required.

The problem with Dolphin backups

If you have used Dolphin emulator on Nintendo Wii or GameCube, you have probably got a folder full of .rvz files. RVZ is Dolphin's preferred format because it compresses well, but it is not portable — most emulators and burning tools expect plain .iso.

The usual workaround: install Dolphin, find a command-line tool, run it. But for a quick conversion, that is overkill.

RVZ to ISO

RVZ to ISO is a free online tool that handles this entirely in your browser. Drop your .rvz (or .chd, .bin, .ciso) file in, wait a few seconds, get a standard .iso back.

Key features:

Free for files under 200 MB with no signup
Resumable uploads up to 10 GB for larger files
All processing happens in your browser — files never leave your device
Bidirectional conversion: RVZ ↔ ISO, CHD ↔ ISO, BIN ↔ ISO, CISO ↔ ISO

Common use cases:

Shrinking RVZ backups into standard ISO for use with emulators other than Dolphin
Batch-converting folders of disc images
Rescuing CHD files locked to a specific Dolphin version

The tool is open and free at https://rvztoiso.com — try it on your next backup.

How to Extract Video Frames in Your Browser at Any FPS

Essam Ullah — Tue, 08 Sep 2026 14:05:18 +0000

Extracting still images from video is useful for thumbnails, storyboards, testing, and quick visual references.

I built Video to Frames as a free browser-based tool for this workflow. You can load a video, choose the frame rate, and export JPG or PNG images without uploading footage or creating an account.

The main design goals are simple:

Run the conversion in the browser
Keep the workflow private
Support arbitrary FPS values
Make one-click frame extraction practical

If you only need a few frames from a clip, a focused tool like this can be faster than opening a full video editor.

Building a useful co-op game guide: state, puzzles, and player context

Essam Ullah — Sun, 09 Aug 2026 04:26:16 +0000

A co-op game guide is more useful when it explains decisions, not just destinations.

Players usually arrive with a concrete problem: a puzzle is unclear, a route seems blocked, a trophy did not trigger, or a friend on another platform cannot join. A good reference should help them recover from that moment without forcing them to read an entire walkthrough.

Start with state, not a wall of steps

For each puzzle or objective, I try to record the conditions that matter:

what the player should have unlocked first;
which interaction changes the world state;
what a second player needs to do;
how to recognize that the step worked;
what to check when the expected result does not appear.

This makes the guide resilient when players arrive in a different order. It also keeps a walkthrough from becoming a brittle list of directions.

Separate facts from player notes

A compact page can combine verified facts with practical notes, but the two should stay visually distinct. Facts cover controls, unlock requirements, platforms, and known rewards. Player notes cover timing, co-op coordination, alternate routes, and the small details that are easy to miss.

That separation makes updates safer. When a game patch changes a reward or a requirement, the factual section can be corrected without rewriting every tip around it.

Design for the co-op conversation

Co-op information should answer the questions players ask each other while they are playing: Who interacts first? Can we split up? Does progress carry over? Is crossplay available? What happens if one player leaves?

I am collecting these patterns in a public Big Walk player reference, with walkthrough context, puzzle notes, trophies, map unlocks, co-op, and crossplay details: Big Walk Player Guide.

The broader lesson is simple: a game guide is a small information system. If its structure mirrors the player's state and questions, it becomes easier to scan, easier to maintain, and much more helpful than a page that only lists answers.