
World Championship Baseball
World Championship Baseball — frequently asked questions
- What platforms is World Championship Baseball on?
- World Championship Baseball was released on Intellivision.
- When did World Championship Baseball release?
- World Championship Baseball was first released on January 31, 1987.
About World Championship Baseball
You're the home team in blue, engaged in the most realistic home video baseball game around. You've got to hit the fast-breaking curve balls or smoking fastballs. But don't pop up, this game features fly balls as well a grounders. You can also steal bases and kick up a cloud of dust as you slide into the bag. Nine innings of action-packed fun, for one or two players. Play ball! During 1981, APh started work on Baseball II and Basketball II -- one-player versions of the original games. These were not high priorities since the original versions continued to sell well. In 1982, when the Keyboard Component was killed, Marketing wanted to produce a series of Super Sports cartridges for the Entertainment Computer System (ECS) to help push that system, so work was ordered halted on the non-ECS sports games. FUN FACT: INTV Corporation released the game as is, including the fatal bug and the debugging module. The game occasionally crashes, displaying the debugging screen. To explain this, INTV added the following notice to the instruction book: Baseball II, however, was a favorite of baseball-fanatic Mike Minkoff (Snafu). The game had been essentially completed, but regularly crashed, despite weeks of debugging at APh. Mattel didn't want to put any more resources into the game, but Mike, although now a Director in charge of Intellivision, Aquarius and M Network development, volunteered to debug the game himself after hours. Since the game had already been announced in several catalogs and press releases (as All-Star Major League Baseball), Mattel kept the title on the schedule and let Mike work on it, on and off as he had time, throughout 1983. Mike managed to clean most of the bugs out of the game, but the cause of one occasional crash eluded him. He linked in a debugging module written by Rick Koenig (Motocross) that displayed the contents of registers and status words on screen when a game halted. Mike was still trying to trace the problem when, in January 1984, Mattel Electronics was closed. INTV Corporation ultimately released the game; it first appears in their Spring 1986 catalog. They were able to use packaging and instructions already completed for the game at Mattel, with the change of the name to World Championship Baseball so that they wouldn't have to pay for the Major League trademark. The title screen, however, still says "Mattel Electronics presents All-Star Major League Baseball."
Summary via IGDB.
Game details
- Platforms
- Intellivision
Details via IGDB.
Collector value & authenticity
Intellivision · PriceCharting sold data · Verified 2026-10-20
How often it sells
- Loose: about once a month
- Complete: about once a month
- Sealed: about once a year
Prices marked “few sales” rest on about one recorded sale a year, so treat them as a rough guide: the next copy could sell well above or below. Expect to wait for one to come up.
Sales frequency from PriceCharting's completed-sale records, as of 2026-10-20.
Price over time
- Loose
- Complete
A loose copy sold for about $7.00 in Oct 2009, $9.95 five years ago, and $14.99 as of Oct 2026.
Show as table
| Month | Loose | Complete |
|---|---|---|
| Jan 2010 | $5.99 | — |
| Jan 2011 | $1.99 | — |
| Jan 2012 | $6.97 | — |
| Jan 2013 | $14.99 | — |
| Jan 2014 | $13.90 | $40 |
| Jan 2015 | $14.50 | $19.00 |
| Jan 2016 | $6.95 | $19.00 |
| Jan 2017 | $13.95 | $35 |
| Jan 2018 | $8.63 | $15.76 |
| Jan 2019 | $8.90 | $24 |
| Jan 2020 | $8.22 | $19.12 |
| Jan 2021 | $9.95 | $17.98 |
| Jan 2022 | $7.80 | $16.00 |
| Jan 2023 | $10.00 | $35 |
| Jan 2024 | $7.84 | $30 |
| Jan 2025 | $12.50 | $26 |
| Jan 2026 | $11.16 | $33 |
| Oct 2026 | $14.99 | $30 |
Monthly price estimates from PriceCharting's completed-sale records, sampled quarterly, through Oct 2026.
Release record
| Territory | Product # |
|---|---|
| North America INTV Corporation | 5789 |
- North America: Product number confirmed by Mattel's own catalogue.
- Region
- NA
- Released
- 1985
- Authenticity
- Low
INTV's one-player-friendly rework of Mattel's All-Star baseball.
World Championship Baseball is an INTV Corporation release from 1985, developed by APh Technological Consulting, and an updated version of Major League Baseball. It is also listed as All-Star Major League Baseball, the title Video Games Player used in late 1983 when it described an improved version of Mattel's acclaimed baseball game with sliding into third.
Unlike Mattel's original, INTV's remake has a computer opponent, so you can play it alone.
Before you buy
INTV Corporation carts came without keypad overlays. It is a moderately priced cart, and the box and manual account for a clear share of complete copies. Not to be confused with World Series Major League Baseball, which needs the ECS.
Watch on YouTube
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