diff --git a/physics/collisions.py b/physics/collisions.py
new file mode 100644
index 000000000..448f23d70
--- /dev/null
+++ b/physics/collisions.py
@@ -0,0 +1,23 @@
+# Basic implementation of the collision of two circles.
+def circle_collision(
+    fpos: tuple[float, float, float], spos: tuple[float, float, float]
+) -> bool:
+    # difference by XY axes
+    dx = fpos[0] - spos[0]
+    dy = fpos[1] - spos[1]
+
+    # Euclidean distance between the centers of circles
+    distance = pow((pow(dx, 2) + pow(dy, 2)), 0.5)
+
+    # minimum possible distance between circles, without collision
+    min_distance = fpos[2] + fpos[2]
+    collide = distance < min_distance
+
+    # If actual distance smaller than minimal possible, cirlces collides
+    return collide
+
+
+if __name__ == "__main__":
+    from doctest import testmod
+
+    testmod()