Modric, the Ballon d’Or winner in 2018 when Croatia reached the World Cup final in Moscow, put his team ahead seconds after having a penalty saved, but then watched in horror, after being taken off, as Italy’s Mattia Zaccagni curled home the equaliser with the last kick of the game deep in stoppage time.
The draw put Italy into the last 16 and left Croatia third in Group B with two points - unlikely to be enough to take one of the spots reserved for the four best third-placed finishers.
Despite the disappointment, Modric suggested he wanted to carry on even after 178 internationals since his debut in 2006.
“I'd like to keep playing forever but there probably will come a time when I must hang up my boots. I'll keep playing on, but I don't know for how much longer,” the midfielder told reporters.
Modric was resigned in his analysis of the game.
“That was very stressful. We kept battling right until the end but, unfortunately, football was merciless with us tonight. It was cruel above all today but also in our last match (a 2-2 draw with Albania) when we also conceded a late goal.
“But that's part and parcel of football. Often it gives you plenty of smiles but on other occasions it makes you very sad as it did today, losing in the manner we did.
“It's hard when you lose like this to find the words to describe how you feel. Of course we need to bounce back. But that's the way it is.
"And as I said earlier, perhaps it's unfair because we all really fought for Croatia right from the first whistle till the last and the result is what it is,” Modric added.
“The footballing gods don't necessarily always smile on us but we should be proud of the way that we represented our country tonight,” said Modric.
