In development. Illustrative screens. Features are proposed and subject to review.
A companion and coach for Teamfight Tactics
Lobby Theory turns your completed matches into personalized coaching. It highlights the decisions that shaped each match, weighs the alternative lines against your board, economy, and health, and turns your recurring patterns into focused practice.
Your build. Your choice. Always.
A 13-second silent animation. The Lobby Theory logo becomes a purple seven-by-four hex board. Kha’Zix lands on a gold tile, followed by two Hands of Justice and Rabadon’s Deathcap. Two possible builds appear: a seven-unit reroll core, or level eight with Taric in the flex slot instead of Alune. An illustrated pointer chooses the level-eight build and clicks Use this comp. The player makes the choice; the app does not automatically choose or switch builds. Buttons and the pointer inside the video are illustrations.
Explore the possibilities.
Follow your chosen plan.
Learn after the match.
01 / Explore the experience
Choose a guide, explore an idea, then revisit a completed match. Try the controls below: every result is an illustration, with no game or account connected.
The workspaceInteractive demonstrationFree / Player-selected reference
Illustrative readouts · no live game connected
Markers describe a role in your selected guide. They are not purchase scores. Unmatched cards stay unmarked.
Switch the guide to see the same offers take different roles.
Unit letters, readout values, and item/component labels are fictional interface examples, not live game data, TFT builds, or recipes.
Premium / Entire match ended
Your gold fell during a stabilization window. Spending to strengthen a fragile board was reasonable. The record does not show exactly when each upgrade arrived or how much went to purchases versus refreshes.
Pause near 30 gold if your important upgrades have already made the board stable. Preserve room for a later level-up; roll deeper if the immediate risk still justifies it.
Missing shop sequence and upgrade timing prevent an exact stopping-point verdict. No placement probability or simulated combat result is claimed.
Try a focused exercise
Your next meaningful power increase is likely to come from leveling. Which line would you explore?
Your inputs / Your possibilities
Choose champions, items, or both. This demo assembles editable drafts from the hero’s example roster; it does not query a live board or run an AI model.
The selections above are planning inputs you enter yourself.
3. Customize your draft
Saving stores one copy in this page’s memory until reload. It does not create an account or save to a server.
The app will export compatible team codes for TFT’s Team Planner. Supported composition information can transfer; do not assume items, notes, explanations or every build detail will transfer. Code generation and current-set compatibility are not implemented in this preview.
Make it yours. Choose a guide or explore a custom build.
Keep control. Select it for your overlay and switch manually.
Reflect afterward. Request a review after the entire match ends.
02 / The free overlay
Shop markers help you recognize pieces in your selected guide. A compact top-left panel keeps champion roles, item plans, components, substitutes, and temporary holders together, with gold, board value, and gold-to-next-level readouts nearby.
Lobby TheorySelected guide
Backline + frontlineConnect each champion’s role to its items and component requirements. Keep alternative units and early holders close to the main guide.
Use a published, app-assisted, or custom build. You can manually replace your active guide during a match, including with a build you just created.
The app does not automatically select or switch compositions, click the shop, buy units, move pieces, or perform other game actions.
03 / Premium coaching
A result tells you where you finished. A useful review helps you understand how your decisions shaped the way there.
Personalized analysis begins after the entire match ends. Each review connects observations, an alternative line, and the reasoning—while making missing evidence and uncertainty visible.
Explore the completed-match review ↗“You needed strength now. Once the upgrades landed, did the next roll offer enough value to justify the gold?”
After a meaningful upgrade, pause and name the next improvement you are rolling for. Then compare it with the value of saving.
This lesson depends on a stable-board assumption. A fragile board or low health could change the answer.
Across completed matches, look for habits worth practicing: continuing to spend after stabilizing, delaying useful items, or overlooking a supported positioning lesson. Turn a pattern into a focused exercise, then revisit it in later reviews.
04 / Theorycrafting
Start with one or more champions, one or more items, or both. Review a recommended starting point and alternatives, change pieces, and keep a build that reflects how you want to play.
Illustrated example · Patch 18.4bThe generator uses planning inputs you enter. It is not automatically fed your live board to produce prescriptions.
See why a starting composition is suggested, then compare alternatives and their trade-offs. Evidence-supported builds identify their sources and patch; experimental ideas stay labeled. The demo’s recommendation is illustrative, with no combat simulator or performance evidence behind it.
Save a custom build and select it for the overlay, even during a match. Compatible Team Planner code export is part of the workflow; items and notes may not transfer.
05 / Free & premium
The overlay is free. Personalized coaching is planned as a paid offering. The commercial details will be published before purchase becomes available.
Free overlay
Paid coaching
No checkout, subscription, trial allowance or advertising integration is active in this preview.
06 / Data & privacy
Using the free overlay does not automatically create a persistent match recording or a cloud upload.
The app is planned for distribution through Overwolf, using its structured game events alongside static game data and player-entered plans. Local processing supports guide-category matching and your own economy readouts. Ordinary overlay use does not by itself save this match evidence.
If recording is enabled, the planned evidence includes your board and positions, units and equipped items, bench, gold and economy, health, level and XP, round progression, shop offers, and available combat statistics. The final field list depends on source availability and permissions.
Raw source artifacts stay local. Uploads are limited to specifically allowlisted, derived, redacted evidence for the purpose you choose. Redacted does not mean anonymous. The full notice explains Overwolf event data and source boundaries.
Read the complete privacy notice ↗This website: local demo interactions; self-hosted fonts, artwork, and video; no app-added analytics, cookies, persistent browser storage, or game uploads. Website delivery and security services may process technical request information; see the full notice for hosting details.
Before production: source permissions, providers, processing locations, retention rules, and withdrawal/deletion controls must be settled. No production AI vendor or retention schedule is selected. Research remains inactive until the necessary permissions, disclosures, and controls are ready.
07 / Launch & availability
Lobby Theory is an unreleased product. The planned distribution channel is Overwolf. This site shows the product design and working local demonstrations. There is no announced release date, public download, checkout, testing enrollment, or waitlist.
No Riot or Overwolf approval is claimed. The production app is not available yet.
Ask a product question ↗Review scope: shop-marker implementation, in-match theorycrafting, and data-source permissions require feature-specific review. Research launches only with the necessary permissions, disclosures, and controls. Readout calculations and missing-data behavior still need production validation.
08 / Questions, answered
You select your guide and make all gameplay decisions. The app does not automatically switch compositions or buy, sell, move, or otherwise control game pieces. Its suggestions present possibilities for you to consider.
Yes, this is part of the product design. You can enter planning inputs, explore possibilities, edit a build, and manually select it for the overlay. The generator is not automatically fed the live board.
They identify whether an offer belongs to a category in the guide you selected: core unit, substitute, or early item holder. They do not rank every purchase. Unmatched cards remain unmarked, and cards must stay readable.
After the entire match ends, including when your own elimination happens earlier. Coaching is not a live stream of instructions and does not provide live opponent scouting. Review detail depends on what the available evidence supports.
No. The animation reuses a patch-labeled example, the overlay’s generic guides illustrate its categories, and the coaching review uses synthetic data. Theorycrafting assembles experimental drafts locally. There is no combat simulator or production model behind the demo.
The overlay is free; personalized coaching is planned as paid. Prices, coaching allowances, advertising arrangements, and theorycrafting’s tier allocation remain undecided.
Research and model training are separate choices, both off by default. Free and paid users may opt into research without buying or requesting coaching. A requested coaching review has its own processing purpose; it does not enroll you in research or training.
A saved build exists only in this page’s memory and resets on reload. The deletion control displays a sample request; it does not submit or erase anything. For a real privacy inquiry about information already held, email privacy@lobbytheory.com.
Compatible team code export is planned, but is not implemented in this preview. Only information supported by the code format can transfer. Do not assume items, notes, explanations or all other custom-build details are included.
No approval is claimed. This preview communicates the product flows for review. See development status and review scope for the unresolved implementation and permission questions.
09 / Contact & operator
Developed and operated by Johnny Antwiler.
The logo opens into a 7 × 4 hex board. Kha’Zix and his items become the starting point for two possible builds. An illustrated player compares the options, selects the level-eight composition with Taric in the flex slot instead of Alune, and clicks “Use this comp.” It is a visual concept for a player-selected guide, not a recording of released functionality. Controls shown inside the video are not interactive.