This is one of my childhood white whales and I cannot find the answer anywhere.
When I grew up in France, I remember a very short computer game which was actually an ad for LEGO spaceships. Given the fact that I was born in 1996, and it was on a relatively early computer, I think it is from around 1999 to 2003, approximately. I could be wrong though. Here are the things I remember:
The story starts, it's set in the snow. There is a small wooden house, a snowman, and probably Christmas-themed decoratons. It is a point and click game, I think, and a snowman gives you instructions.
You find something (what?) and the snowman says "You should not trust the appearances!" ("il ne faut pas se fier aux apparances !", sentence is stuck in my head since).
The plot evolves, I think a spider is involved? The game is very short, in my memory.
It ends with a spaceship race. You have to pick between three LEGO spaceships: a yellow one, a blue one and a red one. I think it is a minigame, you see the spaceship from behind and you have to dodge obstacles.
When you win, the game ends. A screen, white and snow-themed, prompts you to get the Lego spaceships IRL. The three of them are displayed simultaneously on the screen.
This is all I remember and it is KILLING me. It's been bothering me for literal years, I looked everywhere in my parents' basement to find the CD, but couldn't.