Aces and Kings

Empty foundations that build in opposite directions, four single-card spaces the stock refills by itself, and a waste that gets one pass. This is the file the download button gives you. Make a game explains every part of it.

{
  "name": "Aces and Kings",
  "description": "**Goal:** move both decks to eight foundations. Four build **up from Ace to King** and four build **down from King to Ace**; suits do not matter.\n\n- The foundations start empty: any Ace starts an up foundation and any King a down one.\n- Two reserves hold thirteen face-up cards each, fanned so every card shows. Only their top cards are available.\n- Four single-card feeder spaces begin occupied and refill automatically from the stock whenever cleared.\n- Turn the stock one card at a time to the waste. The top waste card is available. There is **no redeal**.\n- Play reserve, feeder or waste cards to either kind of foundation. A foundation top may also move to another compatible foundation.",
  "decks": [{ "count": 2 }],
  "depots": [
    { "type": "Foundation", "col": 2, "row": 0, "name": "up", "repeat": 4,
      "acceptRule": { "seed": "Ace", "build": { "direction": "Up" } }, "ejectRule": "topOnly" },
    { "type": "Foundation", "col": 2, "row": 1, "name": "down", "repeat": 4,
      "acceptRule": { "seed": "King", "build": { "direction": "Down" } }, "ejectRule": "topOnly" },
    { "type": "Reserve", "fanDirection": "Down", "col": 0, "row": 0, "name": "reserve-1",
      "acceptRule": "none", "ejectRule": "topOnly" },
    { "type": "Reserve", "fanDirection": "Down", "col": 7, "row": 0, "name": "reserve-2",
      "acceptRule": "none", "ejectRule": "topOnly" },
    { "type": "Stock", "col": 3, "row": 3.5, "name": "stock", "acceptRule": "none",
      "ejectRule": "topOnly", "landFace": "Down", "draw": { "to": "waste" } },
    { "type": "Waste", "col": 4, "row": 3.5, "name": "waste", "acceptRule": "none",
      "ejectRule": "topOnly" },
    { "type": "Tableau", "fanDirection": "None", "col": 2, "row": 2.25, "name": "feeder",
      "repeat": 4,
      "acceptRule": {
        "emptyOnly": true,
        "single": true,
        "acceptFrom": ["stock"],
        "allowFaceDown": true
      },
      "ejectRule": "topOnly", "landFace": "Up", "autoRefill": ["stock"] }
  ],
  "dealRules": [
    { "kind": "dealGroup", "to": "reserve-1", "faceUp": 13 },
    { "kind": "dealGroup", "to": "reserve-2", "faceUp": 13 },
    { "kind": "dealGroup", "to": "feeder", "faceUp": 1 }
  ],
  "depotOnly": true,
  "winCondition": { "kind": "allCardsIn", "depots": "Foundation" },
  "tools": "None"
}