...but, being a great guy, Superman also worked with various Marvel heroes back in the day.
Here's a look at a few of those intercompany crossovers between DC Comics and Marvel!
One With Four
A meeting of the first super-hero and the first family of comics should be large....and this one was indeed, with a throwback to tabloid size no less. It also started with a large concept....what if Galactus caused the destruction of Krypton? No Elseworlds here, as Superman found an old computer message from Jor-El stating so, but it did send Superman in search of the world-eater, even resulting him Superman becoming a herald of Galactus, no less, and giving the Fantastic Four and the Cyborg Superman (himself with origins tied to the Fantastic Four) a bit to content with. A bit odd, as it was hard to match Superman with all four members (the Thing, Mr. Fantastic, Human Torch and the Invisible Girl) of the team, but still a galaxy full of fun reading.
Gamma Back In Time
This was a story told in flashback, with Superman thinking back to the early days of his (and Hulk's) career....with Lex Luthor being contracted to build a Gamma Ray device by General Thunderbolt Ross of the U.S. Army to stop the Hulk (though Clark Kent knows he'll use Bruce Banner's device to stop Superman). Cooler still was a little encounter between Rick Jones and Lois Lane.... A tale that looks back at a simpler time in comics, sadly in a more regular sized comic instead of a larger one, but still it has a good time showing readers a different view on super-hero intercompany crossovers, and should leave most readers satisfied as well.
Surfing The Crossover
The story says it's a team-up of Superman and the Silver Surfer, but the best part of the issue is that it is a battle of Fantastic Four foe, the Impossible Man, and Superman's 5th dimensional menace, Mr. Mxyzptlk. The two cause quite a bit of trouble by switching the heroes in time and space, and this is truly a chance to sit back and enjoy the shenanigans that these two tricksters get up to. Odder still is how easily Superman fits in the world of the Fantastic Four, as both Silver Surfer and Impossible Man both got their start in Marvel's first family title....
Twice With Webs
Quite the collection of the Marvel Bullpen here....though quite a few of these folks would go on to have success at DC Comics as well!
....and you can see that on the back cover by John Buscema and Joe Sinnott. A little leaning towards Marvel with this team-up (as Parasite was more of a stooge, manipulated by Dr. Doom), but seeing DC heroes dealing with these problems still made for a great read.
With all that, you'd think the book would be nothing but credits....but, there was a story there as well.
Most of those stories involve Batman meeting various Marvel heroes, like Spider-Man, Daredevil, the Punisher, Captain America and the Hulk, but there are a few more, with Green Lantern meeting Silver Surfer, Darkseid meeting Galactus, and even the New Teen Titans working with the X-Men.
More details on Batman's various team-ups are here, and likely we'll cover the rest sometime soon. It seems Batman and Superman are enough to worry the rest of the Marvel universe on most days....