Card-Forge/forge

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An unofficial rules engine for the world's greatest card game.

Stars: 2.7k
Forks: 1.1k
Open beginner issues: 0
Indexed issues: 489
Avg merge: 1d 1h
Merged PRs (30d): 163

Dominant language: Java
License: GPL-3.0
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 15, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue

Open All

488 open issues indexed

AI doesn't attack with creatures with trample if it has a few lifes Open

AI keep

Card-Forge/forge#4360 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
AI activates abilities of Assault Formation/Giver of Runes before combat and doesn't attack Open

AI Game Mechanics keep

Card-Forge/forge#4373 · 0 comments · 1 reaction · 1 assignee · Indexed Sep 15, 2026
Wiring needed for Charm -> SubAbility ?? Open

Game Mechanics keep Low priority

Card-Forge/forge#4383 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
AI cascades to Living End and casts Living End when it has a lot of creatures on the battlefield Open

AI keep

Card-Forge/forge#4389 · 3 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
AI doesn't use activated ability of Waker of Waves Open

AI keep

Card-Forge/forge#4391 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Large summarised list of requests (AI problems, incorrect information, Forge problems, adventure mode problems) Open

AI keep

Card-Forge/forge#4392 · 10 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
PlaneChase: keep phenomena abilities from loser Open

Game Mechanics keep Rules compliance

Card-Forge/forge#4410 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
AI doesn't use ability of Elvish Piper if it can cast creature Open

AI keep

Card-Forge/forge#4430 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
AI activates ability of Quicksilver Amulet to put a creature with cmc 1 onto the battlefield Open

AI keep

Card-Forge/forge#4435 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Cost payment issue with Lion's Eye Diamond Open

keep

Card-Forge/forge#4437 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
AI chooses wrong targets for Might of Old Krosa Open

AI keep

Card-Forge/forge#4439 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
AI casts Bloodchief's Thirst with kicker to kill creature with 2 cmc Open

AI keep

Card-Forge/forge#4443 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
AI doesn't cast some combat tricks to protect his permanents or itself Open

AI keep

Card-Forge/forge#4464 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
AI uses Witch's Clinic on opponents commander Open

AI keep

Card-Forge/forge#4466 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 15, 2026
multiple cards or token at the same time slow down the game Open

Game Mechanics GUI keep Performance

Card-Forge/forge#4475 · 1 comment · 0 reactions · 2 assignees · Indexed Sep 15, 2026
Phyrexian Scrapyard issue (plus a request that will probably go nowhere) Open

AI keep

Card-Forge/forge#4492 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
AI wastes mana by using Rogue's Passage unnecessarily Open

AI keep

Card-Forge/forge#4501 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
AI can't play [[The Eleventh Doctor]] properly Open

AI keep

Card-Forge/forge#4537 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Villainous Choice probably needs some A.I. logic Open

AI keep

Card-Forge/forge#4540 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Feature Requests: Rewind phases Open

Enhancement keep Low priority

Card-Forge/forge#4600 · 11 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
AI attacks with a single Signal Pest Open

AI keep

Card-Forge/forge#4656 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
There is also an error in the 'cancel' operation for the 'Cabal Coffers' Open

keep

Card-Forge/forge#4669 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
May Play needs to Refactored into Different Static Abilities Open

Game Mechanics keep

Card-Forge/forge#4700 · 8 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Volrath's Shapeshifter with Triskelion as topmost card of graveyard causes stack overflow Open

BUG Game Mechanics keep

Card-Forge/forge#4723 · 4 comments · 0 reactions · 2 assignees · Indexed Sep 15, 2026
Outpost Siege loses track of "can be cast" when casting fails Open

BUG Game Mechanics good first issue keep

Card-Forge/forge#4745 · 11 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Player Hidden Keywords Meta Issue Open

Game Mechanics keep

Card-Forge/forge#4760 · 6 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Are triggeringObjects sometimes set too late? Open

Game Mechanics keep

Card-Forge/forge#4844 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
AI Ugin's Mastery second ability badly Open

AI keep

Card-Forge/forge#4846 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
StackDescription dynamic replacements & localization Open

GUI keep

Card-Forge/forge#4960 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 15, 2026
User prompted for floating mana that isn't lost between steps and phases Open

GUI keep

Card-Forge/forge#4961 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Rite of Ruin messy script Open

Card Cleanup keep Low priority

Card-Forge/forge#5069 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Highlight Auto Payment Open

Enhancement keep

Card-Forge/forge#5112 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Arboria rework Open

Card Patch keep

Card-Forge/forge#5137 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
AI eagerly evokes Solitude targeting creatures with ward without mana to pay for ward cost Open

AI keep

Card-Forge/forge#5139 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Esix, Fractal Bloom and multiple token creation Open

BUG Game Mechanics keep

Card-Forge/forge#5176 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Crash when setting deck selection menu display parameters for generated deck options on the Constructed tab Open

keep

Card-Forge/forge#5197 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
AI doesn't block and thus dies Open

BUG keep

Card-Forge/forge#5213 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Protection from spells checks can fail Open

Game Mechanics keep Rules compliance

Card-Forge/forge#5262 · 5 comments · 0 reactions · 2 assignees · Indexed Sep 15, 2026
Choose Token AI Open

AI keep

Card-Forge/forge#5268 · 1 comment · 0 reactions · 2 assignees · Indexed Sep 15, 2026
Anje Falkenrath / Falkenrath Gorger interaction Open

BUG Game Mechanics keep

Card-Forge/forge#5289 · 6 comments · 0 reactions · 2 assignees · Indexed Sep 15, 2026
Possible bug with Kozilek, the Broken Reality and Ulalek, Fused Atrocity's copy ability Open

BUG keep

Card-Forge/forge#5340 · 6 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Card collation for strixhaven in adventure mode is incorrect Open

Adventure Drafting keep

Card-Forge/forge#5353 · 3 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
SacrificeEffect: refactor Cumulative upkeep & Echo Open

Game Mechanics keep Low priority

Card-Forge/forge#5362 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Shell scripts aren't passing down command line args to java call Open

keep

Card-Forge/forge#5371 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
HybridMana Cost choose before Cost Adjustment Open

Game Mechanics GUI keep

Card-Forge/forge#5374 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Would it be reasonable to allow larger values in `GameEntityCounterTable`? Open

Game Mechanics keep Low priority

Card-Forge/forge#5404 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Sarpadian Empires, Vol. VII Open

Card Patch keep Low priority

Card-Forge/forge#5411 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Badlands Revival does not work correctly Open

BUG GUI INVALID keep

Card-Forge/forge#5432 · 8 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Adventure Mode: "On the Hunt" quests do not work after save/load Open

Adventure keep

Card-Forge/forge#5440 · 3 comments · 0 reactions · 2 assignees · Indexed Sep 15, 2026
Export decklist to clipboard in parseable format (number of cards - cardname etc.) Open

GUI keep QOL

Card-Forge/forge#5468 · 13 comments · 0 reactions · 2 assignees · Indexed Sep 15, 2026

Card-Forge/forge

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